PROCESS AND SYSTEM Of EQUALIZATION OF the RESPECTIVE LEVELS OF POWER OF the CHANNELS Of an OPTICAL SIGNAL SPECTRALEMENT MULTIPLEX

FIBEROPTIC DUAL-CORE WITH RING DOPES RARE EARTH

OPTICAL AMPLIFIER OF BANDS C AND L PLUS SYSTEMS OF TRANSMISSIONSOUS-MARINS

Cloth for patient e.g. infant, in hospital, has sensor for sensing movement of patient, and transmitting unit transmitting distance, wireless and data representative of measurements provided by sensor and cloth

The cloth (105) has a first sensor (110) for detecting ambient hygroscopy surrounding the cloth, and a second sensor (115) detecting room temperature surrounding the cloth. A third sensor (120) detects oximetry of blood of a patient. A fourth sensor (125) detects heart rate of the patient. A fifth sensor (130) senses movement of the patient. A transmitting unit transmits distance, wireless and data representative of measurements provided by the sensor and the cloth. A detection unit (140) detects alarm conditions and a skeletal value configured by an operator. Independent claims are also included for the following: (1) a device for processing signal (2) a method for monitoring a patient.

METHOD, TERMINAL AND HELMET WIRELESS VOICE COMMUNICATION WITH SELF-SYNCHRONIZATION

METHOD AND DEVICE FOR REMOTE MONITORING OF A PLURALITY OF PATIENTS

STICKING EFFECT HAS LOCATES APPLICATION FOR the PRACTICE Of a SPORT

METHOD, TERMINAL AND SYSTEM WIRELESS TECHNOLOGY TDMA IS FOR A FULL DUPLEX VOICE COMMUNICATION INTERLACED WITH A DATA EXCHANGE IN A MASTER/SLAVE

TERMINAL SUPPORTING A FULL DUPLEX VOICE COMMUNICATION OR DATA OVER A NETWORK AUTONOMOUS AND A DIRECT CONNECTION TO OTHER COMMUNICATION MEANS ON OTHER NETWORKS

Le terminal de communication portable pour communiquer sur au moins deux réseaux radio indépendants, qui comporte, dans un boîtier unique : - des moyens de communication (47, 49) par multiplexage temporel sur un canal radio unique, de type TDMA Full duplex, pour une communication audio en mode « conférence » et « mains-libres » sur un premier réseau autonome, - des moyens d'accès (43, 50) à une communication half-duplex sur un deuxième réseau, autonome et indépendant du premier réseau full-duplex, - une connexion à un casque audio comportant un microphone (41) et un haut-parleur (52), - une connexion sans fil pour un réseau de téléphonie cellulaire, - au moins un bouton poussoir (45) pour commuter la communication du casque audio depuis et vers la communication sur le premier réseau, le deuxième réseau ou le réseau de téléphonie cellulaire au moyen de circuits électronique de commutation et - un mélangeur électronique de signaux audio (42, 51) de type Codec comportant plusieurs entrées et sorties.

PROCESS, TERMINAL AND HELMET OF VOICE COMMUNICATION WITHOUT WIRE WITH AUTO-SYNCHRONISATION

Le terminal de communication comporte : - un circuit digital de communication utilisant un multiplexage temporel sur un seul canal radio, sélectionnable dans une bande de fréquences donnée, ledit système mettant en œuvre une communication sans fil en mode «conférence » et « mains-libres » sur un réseau autonome entre au moins deux porteurs de dispositifs homologues et - un moyen de synchronisation automatique sur le signal de n'importe quel autre terminal d'un groupe de terminaux pour assurer la continuité de la communication entre les terminaux restants du groupe en cas de perte du signal de l'un quelconque des autres terminaux du groupe. Dans des modes de réalisation, le moyen de synchronisation est adapté à se synchroniser sur le premier signal de synchronisation émanant d'un autre terminal du même groupe, et en cas de non réception de signal de synchronisation, à émettre, à intervalles de temps réguliers, son propre signal de synchronisation à l'adresse des autres terminaux du groupe ...

METHOD, TERMINAL AND SYSTEM WIRELESS TECHNOLOGY TDMA IS FOR A FULL DUPLEX VOICE COMMUNICATION INTERLACED WITH A DATA EXCHANGE IN A MASTER/SLAVE

Terminal de communication sans fil (110 à 115) qui comporte un circuit digital de communication utilisant un multiplexage temporel sur un canal radio unique, sélectionnable dans une bande de fréquences donnée, ledit système mettant en œuvre une communication audio sans fil en mode «conférence» et «mains-libres» sur un réseau autonome entre au moins deux porteurs de dispositifs homologues. Ce multiplexage temporel se voit réserver des créneaux temporels TA dans le cycle temporel dédiés à la communication audio full-duplex, ce nombre de créneaux étant égal au nombre maximal de terminaux pouvant participer simultanément à la conférence en mode full-duplex. Ce multiplexage temporel se voit réserver un ou plusieurs créneaux temporels TD dans le cycle temporel dédiés à l'échange de données entre un terminal spécifique nommé « interface » jouant le rôle de maître, et l'ensemble des autres terminaux du groupe jouant le rôle d'esclaves, que ces terminaux participent activement ou non à la communication ...

AMPLIFYING FIBEROPTIC

TERMINAL ENABLING FULL-DUPLEX VOCAL COMMUNICATION OR DATA COMMUNICATION ON AN AUTONOMOUS NETWORK SIMULTANEOUSLY WITH A DIRECT CONNECTION WITH OTHER COMMUNICATION MEANS ON OTHER NETWORKS

The portable communication terminal for communicating on at least two independent radio networks, comprises, in a single housing: 1. Terminal for communicating on at least two independent radio networks , characterized in that it comprises , in a single housing:Communication means by time multiplexing on a single radio channel, TDMA type full-duplex, for audio communication in “conference” and “hands-free” mode on a first autonomous network without infrastructure,Access means for half-duplex audio communication on a second autonomous network, independent from from the first full-duplex network,A connection to a microphone and a loudspeaker,A wireless connection for a cellular telephone network,At least one pushbutton for switching the communication of the microphone and loudspeaker from and to the communication on the first network, the second network or the cellular telephone network by means of electronic switching circuits andAn electronic mixer of audio signals of Codec type comprising several inputs and outputs, configured to mix on the full-duplex local area network half-duplex communications to provide to a user, via the microphone and the speaker, simultaneous access to multiple audio communications on different networks, depending on the push button press.2. Terminal according to claim 1 , which comprises means for audible signaling of the cutoff and/or establishment of a synchronization data communication between said terminal and a peer terminal.3. Terminal according to which comprises means for audible signaling of the cut and/or the establishment of a communication between a peer terminal claim 1 , a microphone and a speaker of said terminal counterpart.4. Terminal according to claim 1 , which comprises means for mixing input and output signals with prioritization claim 1 , attenuation claim 1 , timing or recovery of audio signals.5. Terminal according to claim 1 , which comprises a codec providing functions of pre-amplification claim 1 , audio mixing ...

METHOD, TERMINAL AND HEADSET FOR WIRELESS FULL-DUPLEX VOICE COMMUNICAITON WITH AUTO-SYNC WITHOUT BASE OR SYNC-MASTER

A communication terminal having a digital communication circuit and an automatic synchronizer. The digital communication circuit utilizes time division multiplexing in a single radio channel, selectable in a frequency band. The terminal implements a wireless communication in a conference and hands-free mode on an autonomous network between at least two wearers of similar terminals. The automatic synchronizer synchronizes to the signal of other terminal in the group to synchronize its internal time reference. This ensures the continuity of communication between each terminal in the group within a range of each other, even when the communication is lost with other terminals in the group. No particular terminal is required to maintain the synchronization in the group. 121-. (canceled)22. A communication terminal , comprising:a digital communication circuit utilizes a time division multiplexing on a single radio channel, selectable in a given frequency band, the communication terminal implements a wireless communication in conference and hands-free mode on an autonomous network between at least two wearers of similar communication terminals, the digital communication circuit is configured so that each frame transmitted contains both an order number of the communication terminal in a group and an ordered chaining data of the order numbers of the communication terminals synchronized with each other for the group comprising more than three communication terminals;an automatic synchronizer synchronizes to a signal of any of other communication terminals in the group of terminals, synchronizes an internal time reference, thus a periodic cycle time, to a time reference common for all terminals of the group, the synchronization being based on the order number of a transmitting terminal present in a frame, and calculates a transmission time slot in the periodic cycle time of the time division multiplexing in accordance with the order number; andwherein the automatic ...

COMPOSITION MADE FROM EPOXY RESIN AND POLYURETHANE

The present invention relates to a composition comprising: 118-. (canceled)19. An adhesive composition comprising:{'claim-text': ['at least one polyurethane P comprising at least two acrylate end functions; and', 'at least one epoxy resin; and'], '#text': 'a composition A comprising:'}{'claim-text': ['at least one polyamine B1 comprising at least two functions chosen from primary and secondary amines;', 'at least one polyamine B2, different than the polyamine B1, comprising at least two functions chosen from primary and secondary amines;'], '#text': 'a composition B comprising:'}wherein:the adhesive composition does not comprise any polythiol; andthe weight ratio of polyurethane(s) P/epoxy resin(s) in composition A ranges from 51/49 to 99/1.20. The composition as claimed in claim 19 , wherein the epoxy resin has a viscosity claim 19 , measured at 23° C. claim 19 , of from 7 to 13000 mPa·s.22. The composition as claimed in claim 19 , wherein the polyurethane P has an acrylate function content ranging from 0.2 to 3 meq per gram of polyurethane P.23. The composition as claimed in claim 19 , wherein the acrylate functionality of the polyurethane P ranges from 1 to 4.24. The composition as claimed in claim 19 , wherein the polyurethane P is obtained by reaction:i. of a polyurethane comprising at least two —OH end functions and of at least one compound chosen from acrylic acid chloride or an acrylic acid ester; orii. of a polyurethane comprising at least two —OH end functions and of at least one compound chosen from an isocyanatoalkyl acrylate; oriii. of a polyurethane comprising at least two —NCO end functions and of at least one compound chosen from a hydroxylated ester of acrylic acid.25. The composition as claimed in claim 24 , wherein the hydroxylated ester of acrylic acid has one of formulae (IV-1-1) and (IV-1-2) below:{'br': None, 'sub': ['2', '2', '2'], '#text': 'CH═CH—C(═O)—O—CH—CH—OH\u2003\u2003(IV-1-1): 2-hydroxyethyl acrylate (HEA):'}{'br': None, 'sub': ['2', ...

ADHESIVE DUAL-COMPONENT COMPOSITION BASED ON POLYURETHANE

The invention relates to an adhesive dual-component composition comprising a composition A based on a polyurethane prepolymer with cyclocarbonate terminations and a composition B based on a mixture comprising at least one diamine B1 comprising only two primary amine groups of the —CH—NHtype and at least one polyamine B2 comprising at least three primary amine groups of the —CH—NHtype. The invention also relates to a multilayer structure produced from the adhesive composition according to the invention and to the method for the production thereof. 115-. (canceled)16. An adhesive composition comprising:a composition A comprising at least one cyclocarbonate-terminated polyurethane prepolymer, and [{'sub': 2', '2, 'at least one diamine B1 comprising only two —CH—NHgroups, and'}, {'sub': 2', '2, 'at least one polyamine B2 comprising at least three —CH—NHgroups, wherein the diamine B 1 :polyamine B2 weight ratio ranges from 30/70 to 70/30.'}], 'a composition B comprising17. The composition as claimed in claim 16 , wherein the cyclocarbonate-terminated polyurethane prepolymer is obtained by reacting an NCO-terminated polyurethane and a glycerol cyclocarbonate.18. The adhesive composition as claimed in claim 16 , wherein the cyclocarbonate-terminated polyurethane prepolymer is prepared by a process comprising the following steps:E1) preparing an NCO-terminated polyurethane prepolymer by a polyaddition reaction comprising reacting at least one polyisocyanate selected from the group consisting of diisocyanates and triisocyanates with at least one polyol selected from the group consisting of polyether polyols and polyester polyols, and mixtures thereof; followed byE2) reacting the product formed in the first step E1) with at least one glycerol cyclocarbonate in an amount such that all of the NCO groups present in the reaction medium at the end of step E1) react in the presence of the glycerol carbonate.19. The adhesive composition as claimed in claim 18 , wherein at least one ...

Composition based on methacrylate monomer

Composition à base de monomère méthacrylate La présente demande concerne une composition bicomposante comprenant : - une composition A comprenant : - au moins un polyuréthane P comprenant au moins deux fonctions méthacrylate terminales, la teneur en polyuréthane P étant supérieure ou égale à 6% en poids par rapport au poids total de la composition A; - au moins un agent réducteur ; et - au moins un monomère méthacrylate ; - une composition B comprenant : - au moins un agent oxydant ; et - éventuellement au moins un monomère méthacrylate, ledit polyuréthane P étant obtenu par un procédé comprenant : - E1) une étape de préparation d’un polyuréthane à terminaisons NCO comprenant la réaction de polyaddition entre : - i) au moins un polyisocyanate ; et - ii) au moins un polyol ; - E2) la réaction du produit formé à l’issue de l’étape E1) avec au moins un monomère méthacrylate M comprenant au moins une fonction hydroxyle. Composition based on methacrylate monomer The present application relates to a two-component composition comprising: - a composition A comprising: - at least one polyurethane P comprising at least two terminal methacrylate functions, the content of polyurethane P being greater than or equal to 6% by weight per relative to the total weight of composition A; - at least one reducing agent; and - at least one methacrylate monomer; - a composition B comprising: - at least one oxidizing agent; and - optionally at least one methacrylate monomer, said polyurethane P being obtained by a process comprising: - E1) a step for preparing an NCO-terminated polyurethane comprising the polyaddition reaction between: - i) at least one polyisocyanate; and - ii) at least one polyol; - E2) the reaction of the product formed at the end of step E1) with at least one methacrylate monomer M comprising at least one hydroxyl function.

DUAL SHEATH PHOTONIC OPTICAL FIBER

L band doped fiber optical amplifier, for wavelength division multiplexing systems, has a low population inversion doped monomode fiber core with a signal-pumped internal multimode sheath

Amplificateur optique (8) à fibre dopée pour la bande L (bande de 1570 à 1610 nm environ) comportant une fibre optique dopée (10) comprenant un coeur monomode dopé (16) et une gaine (18, 20), et un moyen de pompage optique (12) couplé optiquement à la fibre dopée, caractérisé en ce que ladite gaine comprend une gaine interne multimode (18) et une gaine externe (20), le signal de pompage étant injecté dans la gaine interne (18), et en ce que le coeur monomode (16) est dopé de manière à induire un taux moyen d'inversion de population inférieur à 50 % dans la fibre dopée, et de préférence compris entre 35% et 45 %. Application aux systèmes de transmission optique WDM.

Transmission method and optical link with spectral multiplexing with amplification.

DUAL SHEATH PHOTONIC OPTICAL FIBER

L'invention propose une fibre optique photonique à double gaine (2), présentant- un coeur de fibre (4), une première gaine (6) entourant le coeur de fibre et une deuxième gaine (8) entourant la première gaine,- au moins un trou (10) dans le coeur de fibre; et- un dopage avec un ion de terre rare, dans le coeur de la fibre, et le cas échéant dans la première gaine. L'invention permet d'obtenir une fibre double gaine avec un bon recouvrement du signal et d'une pompe injectée dans le coeur. Elle améliore le rendement d'amplification des amplificateurs optiques à double gaine, dans lesquels le signal est injecté dans le coeur de fibre et la pompe dans la première gaine. The invention provides a double clad photonic optical fiber (2), having - a fiber core (4), a first cladding (6) surrounding the fiber core and a second cladding (8) surrounding the first cladding, - at at least one hole (10) in the fiber core; and doping with a rare earth ion, in the core of the fiber, and if necessary in the first cladding. The invention makes it possible to obtain a double clad fiber with good signal recovery and a pump injected into the heart. It improves the amplification efficiency of double-clad optical amplifiers, in which the signal is injected into the fiber core and the pump into the first cladding.

Composition based on (meth)acrylate monomers

Composition à base de monomères (méth)acrylate La présente invention concerne une composition bicomposante réticulable comprenant : - un composant A comprenant : - un agent réducteur ; - un sel métallique choisi dans le groupe constitué des sels métalliques d’acide (méth)acrylique, des sels métalliques d’acide itaconique, et de leurs mélanges ; - au moins un monomère (méth)acrylate M1 - un composant B comprenant un agent oxydant ; ladite composition étant caractérisée en ce qu’elle comprend au moins un photo-amorceur radicalaire dans le composant A et/ou B ; ainsi que ses utilisations. FIGURE : NEANT Composition based on (meth)acrylate monomers The present invention relates to a crosslinkable two-component composition comprising: - a component A comprising: - a reducing agent; - a metal salt selected from the group consisting of metal salts of (meth)acrylic acid, metal salts of itaconic acid, and mixtures thereof; - at least one (meth)acrylate monomer M1 - component B comprising an oxidizing agent; said composition being characterized in that it comprises at least one radical photoinitiator in component A and/or B; as well as its uses. FIGURE: NONE

Packaging receptacle

OPTICAL SIGNAL DISTRIBUTION SYSTEM

L'invention concerne un système de répartition de signaux optiques amplifiés comprenant un élément de répartition (32) à au moins une entrée, chaque entrée de l'élément de répartition (32) étant raccordée à la sortie d'un amplificateur optique (311 à 31n ) à l'entrée duquel est appliqué un signal optique. Selon l'invention, les amplificateurs optiques (311 à 31n ) sont des amplificateurs optiques dont les gains sont maintenus constants. A system for distributing amplified optical signals includes a distribution element (32) with at least one input, each input of the distribution element (32) being connected to the output of an optical amplifier (311 to 31n) to the input of which an optical signal is applied. According to the invention, the optical amplifiers (311 to 31n) are optical amplifiers whose gains are kept constant.

Regulated optical amplifier.

PHOTONIC FIBER WITH HIGH EFFECTIVE SURFACE

DOUBLE HEART OPTICAL FIBER WITH RARE EARTH DOPING RING

Fibre optique amplificatrice comprenant un coeur monomode d'indice de réfraction n1 , un coeur multimode d'indice de réfraction n2 et une gaine optique d'indice de réfraction n3 , ledit coeur multimode comprenant un anneau dopé de terre rare entourant le coeur monomode, caractérisée en ce que l'anneau dopé de terre rare a un indice de réfraction n4 sensiblement égal à l'indice de réfraction n2 du coeur multimode. Amplifying optical fiber comprising a single-mode core with refractive index n1, a multimode core with refractive index n2 and an optical cladding with refractive index n3, said multimode core comprising a rare earth doped ring surrounding the single-mode core, characterized in that the ring doped with rare earth has a refractive index n4 substantially equal to the refractive index n2 of the multimode core.

C-STRIP MULTIMODE SHEATH FIBER OPTICAL AMPLIFICATION

Tights for sports wear, especially for running or cycling, have elasticated zones providing different degrees of support

The tights are made from assembled pieces of stretch textile materials having three different degrees of stretch - the first (11, 12, 13, 21) with normal elasticity, the second (2, 3, 4, 7, 9) providing support, and the third (8) with higher elasticity. The first and second types have more or less the same degree of elasticity in a lengthwise direction along the garment, while the second ones have a lower transverse elasticity than the first, e.g. in a ratio of 1 : 2 or 1 : 3. In the knee zones the pieces are assembled to allow an angle of flexure that varies according to the sport being pursued. At least one first or second piece has a false seam (15') that forms an oblique line of reduced elasticity. Another second piece with a support effect covers the internal and external muscles of the lower leg.

AMPLIFIER AND METHOD FOR AMPLIFYING AN OPTICAL SIGNAL

EXPANDABLE THREAD JOINT AND METHOD OF MAKING SAME

METHOD AND SYSTEM FOR EQUALIZING THE RESPECTIVE LEVELS OF CHANNEL POWER OF A SPECTRALLY MULTIPLEXED OPTICAL SIGNAL

Le procédé comporte une opération de détermination du niveau de puissance de chaque canal du signal optique spectralement multiplexé, une opération d'introduction d'une atténuation dans les canaux présentant des niveaux de puissance élevés correspondant à la différence entre un niveau déduit de ces niveaux élevés et un niveau faible de référence. Le système comporte au moins un module égaliseur optique (4) incluant des moyens (18, 19, 21) pour mesurer les niveaux respectifs de puissance optique des canaux du signal à surveiller, des moyens (20) de traitement pour la mise en oeuvre du procédé et des moyens (5) d'atténuation réglables, commandés par les moyens de traitement et aptes à agir séparément sur les niveaux de puissance des canaux. The method comprises an operation of determining the power level of each channel of the spectrally multiplexed optical signal, an operation of introducing an attenuation in the channels having high power levels corresponding to the difference between a level deduced from these high levels and a low baseline. The system comprises at least one optical equalizer module (4) including means (18, 19, 21) for measuring the respective levels of optical power of the channels of the signal to be monitored, processing means (20) for the implementation of the method and adjustable attenuation means (5), controlled by the processing means and able to act separately on the power levels of the channels.

TWO-COMPONENT ADHESIVE COMPOSITION BASED ON POLYURETHANE

TERMINAL ALLOWING FULL-DUPLEX VOICE OR DATA COMMUNICATION ON AN AUTONOMOUS NETWORK AND DIRECT CONNECTION TO OTHER MEANS OF COMMUNICATION ON OTHER NETWORKS

Le terminal de communication portable pour communiquer sur au moins deux réseaux radio indépendants, qui comporte, dans un boîtier unique : - des moyens de communication (47, 49) par multiplexage temporel sur un canal radio unique, de type TDMA Full duplex, pour une communication audio en mode « conférence » et « mains-libres » sur un premier réseau autonome, - des moyens d'accès (43, 50) à une communication half-duplex sur un deuxième réseau, autonome et indépendant du premier réseau full-duplex, - une connexion à un casque audio comportant un microphone (41) et un haut-parleur (52), - une connexion sans fil pour un réseau de téléphonie cellulaire, - au moins un bouton poussoir (45) pour commuter la communication du casque audio depuis et vers la communication sur le premier réseau, le deuxième réseau ou le réseau de téléphonie cellulaire au moyen de circuits électronique de commutation et - un mélangeur électronique de signaux audio (42, 51) de type Codec comportant plusieurs entrées et sorties. The portable communication terminal for communicating on at least two independent radio networks, which comprises, in a single box: - communication means (47, 49) by time division multiplexing on a single radio channel, of the TDMA Full duplex type, for a audio communication in "conference" and "hands-free" mode on a first autonomous network, - means of access (43, 50) to a half-duplex communication on a second network, autonomous and independent of the first full-duplex network , - a connection to an audio headset comprising a microphone (41) and a loudspeaker (52), - a wireless connection for a cellular telephone network, - at least one push button (45) for switching the communication of the headset audio from and to the communication on the first network, the second network or the cellular telephone network by means of electronic switching circuits and - an electronic mixer of audio signals (42, 51) of Codec type comprising several inputs and exits.

Water management of an industrial site

La présente invention porte notamment sur un procédé, mis en œuvre par ordinateur, de gestion de l’eau d’un site industriel, le procédé comprenant la collecte, par l’intermédiaire d’une interaction d’utilisateur, de données connexes à un ou plusieurs scénarios d’exploitation du site industriel, et pour chaque scénario d’exploitation respectif, le calcul, automatiquement par le biais d’un système informatique et sur la base de données collectées, pour chaque indicateur d’une pluralité d’indicateurs, d’une valeur d’indicateur respective, la pluralité d’indicateurs comprenant un premier groupe d’un ou plusieurs indicateurs d’évaluation de risques eau et un deuxième groupe d’un ou plusieurs indicateurs d’empreinte environnementale, et l’affichage, simultanément sur un écran d’affichage du système informatique, d’une pluralité de représentations graphiques incluant, pour la valeur d’indicateur de chaque indicateur du premier groupe et du deuxième groupe, une représentation graphique respective. L’invention améliore la gestion de l’eau d’un site industriel. Figure pour l’abrégé : Fig. 5 The present invention relates in particular to a computer-implemented method for managing the water of an industrial site, the method comprising the collection, via a user interaction, of data related to a or several operating scenarios of the industrial site, and for each respective operating scenario, the calculation, automatically by means of a computer system and on the basis of collected data, for each indicator of a plurality of indicators, of a respective indicator value, the plurality of indicators comprising a first group of one or more water risk assessment indicators and a second group of one or more environmental footprint indicators, and the display, simultaneously on a display screen of the computer system, of a plurality of graphical representations including, for the indicator value of each indicator of the first group and of the second group, a graphical representation ...

Composition based on methacrylate monomer

Composition à base de monomère méthacrylate La présente demande concerne une composition bicomposante comprenant : - une composition A comprenant : - au moins un polyuréthane P comprenant au moins deux fonctions méthacrylate terminales, la teneur en polyuréthane P étant supérieure ou égale à 6% en poids par rapport au poids total de la composition A; - au moins un agent réducteur ; et - au moins un monomère méthacrylate ; - une composition B comprenant : - au moins un agent oxydant ; et - éventuellement au moins un monomère méthacrylate, ledit polyuréthane P étant obtenu par un procédé comprenant : - E1) une étape de préparation d’un polyuréthane à terminaisons NCO comprenant la réaction de polyaddition entre : - i) au moins un polyisocyanate ; et - ii) au moins un polyol ; - E2) la réaction du produit formé à l’issue de l’étape E1) avec au moins un monomère méthacrylate M comprenant au moins une fonction hydroxyle.

OPTICAL AMPLIFIER WITH OPTIMAL GAIN EXCURSION FOR DIFFERENT INPUT POWER

OPTICAL COUPLER FOR MULTIMODE PUMP

L'invention propose un coupleur optique. Il est formé d'une fibre optique photonique (2), assemblée par fusion et étirage à au moins une fibre optique multimode (4, 6). La fibre photonique peut être utilisée pour l'injection ou l'extraction d'un signal, tandis que les fibres multimodes peuvent être utilisées pour l'injection d'une lumière de pompe. L'invention permet notamment de coupler efficacement des pompes multimodes dans une cavité laser formée par une fibre à double gaine; dans ce cas, la fibre optique n'est pas utilisée pour injecter un signal, mais pour assurer au coupleur une ouverture numérique et un diamètre adaptés à ceux de la cavité. L'invention permet aussi de coupler une ou plusieurs pompes multimodes dans une fibre à double gaine; dans ce cas, elle permet de conserver dans le coupleur, pour le signal transmis à travers la fibre photonique, un diamètre de mode supérieur ou égal au diamètre de mode en entrée ou en sortie du coupleur. The invention provides an optical coupler. It is formed from a photonic optical fiber (2), assembled by fusion and stretching to at least one multimode optical fiber (4, 6). Photonic fiber can be used for injection or extraction of a signal, while multimode fibers can be used for injection of pump light. The invention makes it possible in particular to efficiently couple multimode pumps in a laser cavity formed by a double-clad fiber; in this case, the optical fiber is not used to inject a signal, but to provide the coupler with a numerical aperture and a diameter adapted to those of the cavity. The invention also makes it possible to couple one or more multimode pumps in a double clad fiber; in this case, it makes it possible to keep in the coupler, for the signal transmitted through the photonic fiber, a mode diameter greater than or equal to the mode diameter at the input or output of the coupler.

Apparatus for treating textile fibers with reactive liquids

OPTICAL AMPLIFIER WITH VARIABLE GAIN AND CONSTANT BANDWIDTH, AND SYSTEM FOR AUTOMATIC COMPENSATION OF LOSS VARIATIONS IN AN OPTICAL LINK, COMPRISING SUCH AMPLIFIER

Son gain est réglé par un signal (G) de commande de gain pouvant prendre m valeurs discrètes. Selon un mode de réalisation, il comporte: - m amplificateurs (G1 ,..., Gm ) ayant: chacun un gain fixé et différent des gains de autres amplificateurs, et une bande passante identique à celle des autres; - un commutateur optique (SW1) ayant une entrée (E) couplée à l'entrée (EA) de l'amplificateur à gain variable (AVG1), m sorties (S1 ,..., Sm ) couplées respectivement aux entrées des m amplificateurs (G1 , ..., Gm ) à gain fixé, et une entrée de commande recevant le signal (G) de commande de gain; - et un commutateur optique (SW2) ayant: m entrées (E1 , ..., Em ) couplées respectivement aux sorties des m amplificateurs (G1 ,..., Gm ) à gain fixé, une sortie (SC) couplée à la sortie (SA) de l'amplificateur à gain variable (AVG1), et une entrée de commande recevant le signal (G) de commande de gain. Application aux liaisons optiques à grande distance et multiplexage spectral. Its gain is regulated by a gain control signal (G) which can take m discrete values. According to one embodiment, it comprises: m amplifiers (G1, ..., Gm) having: each a fixed gain different from the gains of other amplifiers, and a passband identical to that of the others; - an optical switch (SW1) having an input (E) coupled to the input (EA) of the variable gain amplifier (AVG1), m outputs (S1, ..., Sm) respectively coupled to the inputs of the m amplifiers (G1, ..., Gm) with fixed gain, and a control input receiving the gain control signal (G); - and an optical switch (SW2) having: m inputs (E1, ..., Em) coupled respectively to the outputs of the m amplifiers (G1, ..., Gm) with fixed gain, an output (SC) coupled to the output (SA) of the variable gain amplifier (AVG1), and a control input receiving the gain control signal (G). Application to long-distance optical links and spectral multiplexing.

Composition based on epoxy resin and polyurethane

Composition à base de résine époxy et de polyuréthane La présente invention concerne une composition comprenant : - une composition A comprenant : - au moins un polyuréthane P comprenant au moins deux fonctions terminales acrylate ; et - au moins une résine époxy ; et - une composition B comprenant : - au moins une polyamine B1 comprenant au moins deux fonctions choisies parmi les amines primaires et secondaires ; - au moins une polyamine B2, différente de la polyamine B1, comprenant au moins deux fonctions choisies parmi les amines primaires et secondaires ; ladite composition étant caractérisée en ce que : - elle ne comprend pas de polythiol ; et - le ratio massique polyuréthane(s) P/résine(s) époxy dans la composition A va de 51/49 à 99/1. Figure : néant Composition based on epoxy resin and polyurethane The present invention relates to a composition comprising: - a composition A comprising: - at least one polyurethane P comprising at least two terminal acrylate functions; and - at least one epoxy resin; and - a composition B comprising: - at least one polyamine B1 comprising at least two functions chosen from primary and secondary amines; - At least one polyamine B2, different from polyamine B1, comprising at least two functions chosen from primary and secondary amines; said composition being characterized in that: - it does not comprise polythiol; and the polyurethane (P) / epoxy resin (s) mass ratio in composition A ranges from 51/49 to 99/1. Figure: none

Optical amplifier with variable gain and constant passband and automatic loss change compensation system in an optical connection with such an amplifier

Dynamic spatial equalizer based on a spatial light modulator

A spatial light modulator (SLM) is made up of a cell filled with a liquid crystal (LC) based substance. Latter has a variable scattering property with respect to an electric field present in the cell. By using a plurality of electrodes in the direct vicinity of said cell, it is then possible to build an electric field inside it which will permit advantageously to modulate a continuous spectrum from optical signals transmitted through said cell. The different pass bands present in said continuous spectrum while at least few of them comprise at least a respective different wavelength will have to be transmitted through said cell at different regions. Latter will correspond to different values of the amplitude of scattering such to be adapted to modulate the respective different pass bands. Such SLM is used to build a dynamic spectral equalizer. Latter contains a spectral dispersive element placed on an optical path of an incident light beam. This spectral dispersive element will spread continuously said incident light beam onto said SLM such that at least each different wavelength present in said incident light beam are focused or imaged towards a different spatial region of said SLM.

Variable-gain and constant passband optical amplifier and system for automatic compensation for loss variations in an optical link comprising such an amplifier

Its gain is regulated by a gain-control signal (G) capable of taking m discrete values. According to one manufacturing mode, it comprises: m amplifiers (G¿1?,..., G¿m?) each having a gain that is fixed and different from the gains of the other amplifiers and a passband identical to that of the others; an optical switch (SW1) having an input (E) coupled with the input (EA) of the variable-gain amplifier (AVG1), m outputs (S¿1?,..., S¿m?) coupled respectively with the inputs of the m fixed-gain amplifiers (G¿1?,..., G¿m?) and a control input that receives the gain-control signal (G); and an optical switch (SW2) having m inputs (E¿1?,..., E¿m?) coupled respectively with the outputs of the fixed-gain amplifiers m (G¿1?,..., G¿m?), an output (SC) coupled with the output of the fixed-gain amplifier (AVG1) and a control input that receives the gain-control signal (G). Application to long-distance optical links and spectral multiplexing.

EXPANDABLE THREAD JOINT AND METHOD OF MAKING SAME

Joint fileté expansible comprenant un premier composant tubulaire comportant une extrémité mâle (1) comprenant une première et une deuxième zones filetées (21, 22) et une région d'insertion (25) pourvue d'une première languette (41) annulaire comprenant une face de butée (41a) saillante, et d'une première concavité (43); un second composant tubulaire comportant une extrémité femelle (2) comprenant une troisième et une quatrième zones filetées (23, 24) et une région d'insertion (26) pourvue d'une deuxième languette (42) annulaire comprenant une face de butée (42a) saillante, et d'une deuxième concavité (44); les première et deuxième languettes (41, 42) étant engagées respectivement dans les deuxième et première concavités (44, 43) à l'état vissé, la face de butée d'au moins une languette étant en contact avec au moins une concavité, l'extrémité mâle (1) comprenant une première surface (47) entre la première zone filetée et la première languette et l'extrémité femelle comprenant une deuxième surface (48) entre la troisième zone filetée et la deuxième concavité, lesdites première et deuxième surfaces (47, 48) définissant, à l'état vissé, un espace annulaire comprenant une zone de forte dimension radiale (49) et une zone de faible dimension radiale (50) apte à former, après expansion une étanchéité par contact métal-métal (60), la première languette (41) prenant appui sur la seconde languette (42). An expandable threaded joint comprising a first tubular component having a male end (1) having first and second threaded regions (21,22) and an insertion region (25) having a first annular tongue (41) having a face protruding stop (41a), and a first concavity (43); a second tubular component having a female end (2) comprising third and fourth threaded regions (23, 24) and an insertion region (26) provided with a second annular tongue (42) having a stop face (42a); ) salient, and a second concavity (44); the first and second tongues ...

Safety valve

ABSTRACT A safety valve intended to limit the pressure of a fluid contained in a vessel to which the valve is connected by a nozzle closed off by a flap-valve pressed against its seat by a spring acting on a first side of the flap-valve. The valve has two operating states, either the flap-valve is closed when the fluid pressure in the vessel acting through the nozzle in the opposite or second side of the flap-valve is below the pre-determined value or the flap-valve is open allowing fluid from the vessel to escape via an escape chamber in the valve when the pressure in the vessel is above the pre-determined value. A casing surrounding the spring is connected with the escape chamber by calibrated holes whereby the pressures in the casing and chamber are equalised. In addition to the spring, fluid pressure in the chamber acts on the first face of the flap-valve. When the flap-valve is closed, the fluid pressure in the escape chamber and casing is low. Thus the flap-valve opens quickly when the fluid pressure in the vessel attains the pre-determined value. When the flap-valve is open the pressure in the escape chamber and thus in the casing is high assisting rapid closure of the flap valve when the vessel pressure falls below the pre-determined value.

Method and device for level compensation of the power of the channels of a spectrally multiplexed optical signal

Regulated optical amplifier

Une fibre optique amplificatrice (10) amplifie plusieurs ondes porteuses multiplexées en longueur d'onde. L'invention permet de maintenir le gain vu par chacune de ces ondes porteuses notamment lorsque la puissance d'entrée totale varie. Pour cela on asservit la puissance d'une lumière d'émission spontanée amplifiée contradirectionnelle. Après filtrage dans un filtre (24) et détection par une photo-diode (18), cette lumière commande le courant d'alimentation de deux diodes laser (12, 14) réalisant le pompage de la fibre ( 10). L'invention s'applique notamment à la réalisation de réseaux de transmission optiques

OPTICAL COUPLER FOR MULTIMODE PUMP

Method and system for equalizing respective power levels of channels of a received optical frequency division multiplexed signal

A method for equalizing power levels of channels of an optical frequency division multiplexed signal determines the power level of each channel of the optical frequency division multiplexed signal and introduces attenuation into the channels having high power levels corresponding to the difference between a level deduced from these high levels and a low reference level. The equalization system includes at least one optical equalizer module which measures the optical power levels of the channels of the signal to be monitored, a processor for implementing the method and variable attenuators controlled by the processor and operating separately on the power levels of the channels.

Cascaded Raman fiber laser, and optical system including such a laser

The present invention relates to a cascaded multi-wavelength Raman fiber laser adapted for emitting radiation of at least one wavelength λ s1 , with a length of optical fiber ( 13 ) having input ( 15 ) and output ( 16 ) sections, means ( 11 ) for introducing pump radiation of wavelength λ p into said length of optical fiber ( 13 ), at least one pair of spaced-apart reflector means ( 151,161; . . . ; 159, 169 ), defining an optical cavity belonging to said optical fiber, each of said reflector means having a center wavelength, the reflector means of each pair being located respectively at said input section ( 15 ) and said output section ( 16 ) of said optical fiber and at least one of said pairs of reflector means having its reflector means located at said output section ( 16 ), called output reflector means ( 161, 162, 163 ), having a lower reflectivity at said center wavelength than the corresponding reflector means of the same pair ( 151, 152, 153 ) located at said input section ( 15 ), so as to emit radiation of said output wavelengths out of said optical fiber ( 13 ).

Regulated optical amplifier

An amplifying optical fiber amplifies a plurality of wavelength-multiplexed carrier waves. The invention enables the gain as seen by each of the carrier waves to be maintained, in particular when the total input power varies. For that purpose, amplified spontaneous "reverse" emission light is servo-controlled in power. After being filtered in a filter and detected by a photodiode, said light controls the powering current supplied to two laser diodes for pumping the fiber. The invention applies in particular to implementing optical transmission networks.

SAFETY VALVE

L'INVENTION EST RELATIVE A UNE SOUPAPE DE SURETE. SELON L'INVENTION, LA SOUPAPE EST DESTINEE A LIMITER LA PRESSION D'UN FLUIDE CONTENU DANS UNE ENCEINTE A LAQUELLE ELLE EST RELIEE PAR UNE BUSE 2 OBTUREE PAR UN CLAPET 7 APPLIQUE SUR SON SIEGE 6 PAR DES MOYENS ELASTIQUES 8. LE VOLUME INTERIEUR DU CARTER 11 ENVELOPPANT LES MOYENS ELASTIQUES 8 EST MIS EN COMMUNICATION AVEC LA CHAMBRE D'ECHAPPEMENT 4 PAR L'INTERMEDIAIRE DE TROUS CALIBRES 17. L'INVENTION TROUVERA TOUT PARTICULIEREMENT SON APPLICATION POUR LIMITER LA PRESSION INTERIEURE NOTAMMENT DES CHAUDIERES. THE INVENTION RELATES TO A SAFETY VALVE. ACCORDING TO THE INVENTION, THE VALVE IS INTENDED TO LIMIT THE PRESSURE OF A FLUID CONTAINED IN AN ENCLOSURE TO WHICH IT IS CONNECTED BY A NOZZLE 2 CLOSED BY A VALVE 7 APPLIED TO ITS SEAT 6 BY ELASTIC MEANS 8. THE INTERIOR VOLUME OF THE CARTER 11 WRAPPING THE ELASTIC MEANS 8 IS PUT INTO COMMUNICATION WITH THE EXHAUST CHAMBER 4 THROUGH GAUGE HOLES 17. THE INVENTION WILL FOUND ESPECIALLY ITS APPLICATION FOR LIMITING THE INTERNAL PRESSURE, PARTICULARLY OF THE BOILERS.

Transmission process and multiplex optical link with amplification

Une liaison à multiplexage spectral dans laquelle une fibre amplificatrice (10) amplifie plusieurs ondes porteuses multiplexées. L'invention permet de maintenir une répartition spectrale plate de son gain lorsque le nombre des ondes porteuses varie. Pour cela on asservit la puissance d'une lumière amplifiée par cet amplificateur et indépendante des ondes porteuses. Cette lumière est une émission spontanée amplifiée contradirectionnelle. Après filtrage dans un filtre (24) et détection par une photo-diode (18) elle commande le courant d'alimentation de deux diodes laser (12, 14) réalisant le pompage de la fibre (10). L'invention s'applique notamment à la réalisation de réseaux de transmission optiques A spectral multiplex link in which an amplifying fiber (10) amplifies several waves multiplexed carriers. The invention makes it possible to maintain a flat spectral distribution of its gain when the number carrier waves varies. For this we enslave the power of a light amplified by this amplifier and independent of carrier waves. This light is a spontaneous amplified contradictory emission. After filtering in a filter (24) and detection by a photo-diode (18) it controls the supply current of two laser diodes (12, 14) pumping the fiber (10). The invention is particularly applicable to the production of optical transmission networks

Coal shale treatment process for the manufacture of construction materials

Optical signal distribution system

The system includes a star-connected optical coupler (32) which has a number of input channels (30). Each input channel has a constant gain optical amplifier (31). There are multiple output channels (33) from the star-connected coupler. The amplifier gain is kept constant for each input channel by use of an optical pump, with the power of a supplementary channel which is input to the optical amplifier being variable. The amplifiers can be of optical fibre or semiconductor type

Method and device for optical signal amplification

The amplifier has a fluorescent type erbium doped optical fiber co-doped with ytterbium having transition radiating energy level. The fiber is excited with a wavelength corresponding to the energy level transition of the co-dopant. The structure uses the relative speed of transition of erbium atoms to prevent the problem of non-stimulation.

LABEL FOR MARKING A PRODUCT.

Controlled optical amplifier

Water management for an industrial site

The invention notably relates to a computer-implemented method of water management for an industrial site, the method comprising collecting, via user-interaction, data related to one or more exploitation scenarios of the industrial site, for each respective exploitation scenario, computing, automatically by a computer system and based on the collected data, for each indicator of a plurality of indicators, a respective indicator value, the plurality of indicators comprising a first group of one or more water risk assessment indicators and a second group of one or more environmental footprint indicators, and displaying, simultaneously on a display of the computer system, a plurality of graphical representations including for the indicator value of each indicator of the first group and the second group, a respective graphical representation. The invention improves water management for an industrial site.

L-BAND OPTICAL FIBER AMPLIFIER

Method and device for equalising the respective power levels of the channels of a spectrally multiplexed signal

The method involves use of an optical equalisation module (4) including an attenuator (5) adjusted by a monitor (6) which comprises a tunable photo-refractive filter (19) and a photodetector (21) with management logic (20). The attenuator has a convertor (17) which controls tunable photo-refractive filters (16a-16n) for different channels. The attenuator is followed by an Er-doped fibre amplifier (3) with multiplexers (10,11) of pumping waves from laser diodes (8,9) supplied with controlled currents from a regulator (12) in response to the level measured by a photodiode (13).

Optical coupler for multimode pump

Amplifying optical fiber

The invention consists in an amplifying optical fiber comprising a core containing a dopant and a cladding, wherein said core comprises a monomode core intended to propagate an optical signal, quantum dots of a semiconductor material being disposed in or near said monomode core, and a multimode core surrounding the monomode core, intended to receive a pumping signal.

DEVICE FOR MONITORING A SPECTRALLY MULTIPLEX TELECOMMUNICATIONS OPTICAL SIGNAL AND TRANSMISSION ARRANGEMENT WITH SUCH A DEVICE

Le dispositif de surveillance comporte des moyens d'entrée (1) pour prélever par couplage une petite portion du signal optique spectralement multiplexé à surveiller, des moyens (11) pour extraire par filtrage la partie correspondant à chaque canal dans une portion de signal prélevée et des moyens (12), coopérant avec les moyens pour extraire par filtrage, pour mesurer le niveau de puissance optique par canal dans la portion de signal prélevée. L'agencement comporte un dispositif de surveillance (0) auquel sont associés des moyens de commande (9) aptes à agir sur le signal optique spectralement multiplexé en fonction des mesures réalisées. The monitoring device comprises input means (1) for taking by coupling a small portion of the spectrally multiplexed optical signal to be monitored, means (11) for extracting by filtering the portion corresponding to each channel in a portion of the signal taken and means (12), cooperating with the means for extracting by filtering, for measuring the level of optical power per channel in the sampled signal portion. The arrangement comprises a monitoring device (0) with which are associated control means (9) able to act on the spectrally multiplexed optical signal as a function of the measurements carried out.

Photonic optical fibre with double cladding

The photonic fibre optic cable has a center (4) with a first sheath (6) and surrounded by a second sheath (8). There is a matrix of holes in the inner sheath. The fibre center is doped with a rare earth ion.

Dual core fiber with rare earth doped ring

An amplifying fibre optic comprises a monomode core (10) with a refractive index n1, a multimode core (20) with a refractive index n2 and an optical casing (30) with a refractive index n3, the multimode core incorporating an annulus doped with a rare earth surrounding the monomode core. The rare earth-doped annulus (50) has a refractive index n4 essentially equal to the refractive index n2 of the multimode core. Its surface is between a surface essentially equal to the surface of the monomode core and a surface three times greater than the surface of the monomode core.

Method for transmitting signals using optical fibres and fibre therefor

The invention concerns a method wherein respective gain factors of successive coaxial layers of an optical fibre are adjusted as to achieve the desired power distribution among the various light fluxes which are propagated in said fibre. Said fluxes can be constituted by signal carrier waves whereof the levels should be balanced in a wavelength multiplexed system. They can also be constituted by a pump wave in an amplification shifted system and by a Raman wave generated by said pump wave and which must be eliminated. The gain factor of a layer is positive, negative or null depending on whether said layer amplifies, absorbs or simply transmits said waves. One flat gain amplifying fibre can in particular comprise a high index amplifying core (2), a low index internal cladding (3), a high index absorbing ring (4), and a low index external cladding (5). The invention is applicable in particular to transoceanic transmissions.

Double jacketed fiber amplifier

Fiber amplifier and pumping scheme for a fiber amplifier

The invention is related to a waveguide amplifier with an input for optical signals and an output for optical signals with at least one piece of amplifying waveguide with at least one mean for coupling pump laser modules to the amplifying waveguide which contains Tm ions. The invention is also related to a pumping scheme for waveguide amplifier feeding two different wavelengths in to the waveguide.

Water management for industrial site

La présente invention porte notamment sur un procédé, mis en œuvre par ordinateur, de gestion de l’eau d’un site industriel, le procédé comprenant la collecte, par l’intermédiaire d’une interaction d’utilisateur, de données connexes à un ou plusieurs scénarios d’exploitation du site industriel, et pour chaque scénario d’exploitation respectif, le calcul, automatiquement par le biais d’un système informatique et sur la base de données collectées, pour chaque indicateur d’une pluralité d’indicateurs, d’une valeur d’indicateur respective, la pluralité d’indicateurs comprenant un premier groupe d’un ou plusieurs indicateurs d’évaluation de risques eau et un deuxième groupe d’un ou plusieurs indicateurs d’empreinte environnementale, et l’affichage, simultanément sur un écran d’affichage du système informatique, d’une pluralité de représentations graphiques incluant, pour la valeur d’indicateur de chaque indicateur du premier groupe et du deuxième groupe, une représentation graphique respective. L'invention améliore la gestion de l’eau d’un site industriel. The present invention relates in particular to a method, implemented by computer, of water management of an industrial site, the method comprising the collection, via a user interaction, of data related to a or several operating scenarios of the industrial site, and for each respective operating scenario, the calculation, automatically by means of a computer system and on the basis of collected data, for each indicator of a plurality of indicators, of a respective indicator value, the plurality of indicators comprising a first group of one or more water risk assessment indicators and a second group of one or more environmental footprint indicators, and the display, simultaneously on a display screen of the computer system, of a plurality of graphical representations including, for the indicator value of each indicator of the first group and of the second group, a graphical representation respect ive. The invention ...

OPTICAL AMPLIFIER WITH OPTIMAL GAIN EXCURSION FOR DIFFERENT INPUT POWER

L'invention concerne un dispositif d'amplification optique, comprenant un amplificateur (1) présentant une excursion de gain optimale dans une plage de longueur d'onde donnée pour une puissance d'entrée donnée, et un filtre (2) présentant une fonction de transfert en cloche, dont la longueur d'onde centrale est accordable sur un domaine suffisante pour permettre de réduire l'excursion de gain de l'amplificateur sur la dite plage lorsque la puissance reçue par l'amplificateur est différente de la dite puissance d'entrée.Elle permet l'adaptation des dispositifs d'amplification aux pertes en lignes, avec des pertes minimales. The invention relates to an optical amplification device, comprising an amplifier (1) having an optimal gain excursion in a given wavelength range for a given input power, and a filter (2) having a function of bell transfer, the central wavelength of which is tunable over a range sufficient to make it possible to reduce the gain excursion of the amplifier over said range when the power received by the amplifier is different from said power input.It allows the adaptation of amplification devices to line losses, with minimal losses.

RAMAN HYBRID AMPLIFIER

L'invention propose un repeteur ou recepteur (2) d'un systeme de transmission par fibre optique, comprenant un amplificateur discret par effet Raman stimule (5), dont la lumiere de pompe residuelle est transmise a un des ports du repeteur ou recepteur. Elle permet ainsi d'utiliser pour une pre-amplification distribuee dans la fibre de ligne la puissance de pompe qui n'a pas ete utilisee dans l'amplificateur discret. The invention provides a repeater or receiver (2) of a fiber optic transmission system, comprising a discrete stimulated Raman amplifier (5), the residual pump light of which is transmitted to one of the ports of the repeater or receiver. It thus makes it possible to use for a pre-amplification distributed in the line fiber the pump power which was not used in the discrete amplifier.

MARKING LABEL OF A PRODUCT.

L'invention concerne une étiquette de marquage d'un produit P en vue d'établir les flux physiques dudit produit au cours d'un cycle de fabrication. L'étiquette selon l'invention présente sur un même support de préférence trois parties (1, 2, 3) détachables munies chacune d'un même code d'identification (4), une des parties 2 ou 3 pouvant ne pas exister lors du marquage d'un produit P situé au début ou à la fin du cycle de fabrication, la première partie (1) constituant une étiquette de marquage du produit P, la deuxième partie (2) comportant une série de moyens d'identification détachables (5) du produit P et de préférence autocollants destinés à être apposés sur la troisième partie (3) d'étiquettes similaires de produits fabriqués ultérieurement à partir du produit P, la troisième partie (3) présentant une plage de réception des moyens d'identification détachés de la deuxième partie (2) d'étiquettes de produits ayant servis à la fabrication du produit P. Application à un procédé de gestion industrielle d'un produit. The invention relates to a label for marking a product P in order to establish the physical flows of said product during a production cycle. The label according to the invention has on the same support preferably three parts (1, 2, 3) detachable each provided with the same identification code (4), one of the parts 2 or 3 may not exist during the marking of a product P located at the start or at the end of the manufacturing cycle, the first part (1) constituting a label for marking the product P, the second part (2) comprising a series of detachable identification means (5 ) of product P and preferably stickers intended to be affixed to the third part (3) of similar labels of products subsequently produced from product P, the third part (3) having a range for receiving the detached identification means of the second part (2) of labels of products having been used in the manufacture of the product P. ...

Bending stiffener comprising at least two body parts

L’invention concerne un raidisseur de flexion (1) destiné à coopérer localement avec un câble flexible et configuré pour limiter la courbure dudit câble flexible, le raidisseur de flexion (1) comprenant un corps (20, 30) comprenant au moins une première partie de corps (20) et au moins une deuxième partie de corps (30), le corps (20, 30) pouvant occuper une configuration séparée dans laquelle les parties de corps (20, 30) sont disjointes et une configuration assemblée dans laquelle les parties de corps (20, 30) sont montées axialement autour de l’axe du câble flexible. La première partie de corps (20) comprend une première surface de coopération (S1) comprenant un organe d’emboitement mâle (22, 23), et la deuxième partie de corps (30) comprend une deuxième surface de coopération (S2) comprenant un organe d’emboitement femelle (32,33). L’au moins un organe d’emboitement mâle (22, 23) coopère par emboitement avec l’organe d’emboitement femelle (32, 33) de manière à s’opposer à un mouvement relatif entre la première surface de coopération (S1) et la deuxième surface de coopération (S2). Figure 1

Photonic crystal fiber with a large effective surface area

An optical fiber with a large effective surface area has holes at points in at least two layers concentric with the fiber of points of a regular matrix. The holes in one layer have the same dimensions and occupy all the available points in the layer. In at least two layers the holes have different dimensions and there is at least one layer with no holes.

Raman fiber amplification stage, optical system and method to control the Raman amplification

The present invention relates to a cascaded multi-wavelength Raman fiber amplification stage with a length of optical fiber having input ( 15 ) and output ( 16 ) sections, pump laser means ( 11 ) for introducing pump radiation of wavelength λ p into said length of optical fiber ( 13 ), at least two pairs of reflector means ( 151,161; . . . ;159, 169 ), spaced-apart the length of optical fiber ( 13 ), at least one of said pairs of reflector means has an output reflector mean ( 161, 162, 163 ), with a reflectivity lower than 100% and a feed back loop with: a tap coupler ( 20 ) for deriving a low percentage of the optical output signal as a optical monitor signal ( 28 ), at least one wavelength selecting element ( 21, 25,26, 27 ) for the optical monitor signal ( 28 ), at least one opto-electrical converter ( 23, 231,232,233 ) generating a electrical signal and a control circuit ( 27 ) for the electrical signal connected to adjustment means ( 181, 182, 183 ) adjusting the reflectivity of the output reflector means ( 161, 162, 163 ).

Double-clad photonic optical fiber

The invention proposes a double-clad photonic optical fiber presenting: a fiber core, first cladding surrounding the fiber core, and second cladding surrounding the first cladding; at least one hole in the fiber core; and doping using a rare earth ion, at least in the core of the fiber. The invention makes it possible to obtain a double-clad fiber with good overlap between the signal and a pump injected into the core. It improves amplification efficiency in double-clad optical amplifiers where the signal is injected into the core of the fiber and the pump into the first cladding.

Methacrylate monomer-based composition

The application relates to a two-component composition comprising: - a composition A comprising: - at least one polyurethane P having at least two terminal methacrylate functions, the polyurethane content P being at least 6% by weight relative to the total weight of composition A; - at least one reducing agent; and - at least one methacrylate monomer; - a composition B comprising: - at least one oxidizing agent; and - optionally at least one methacrylate monomer, said polyurethane P being obtained by a method comprising: - E1) a step of preparing an NCO-terminated polyurethane, comprising the polyaddition reaction between: -i) at least one polyisocyanate; and -ii) at least one polyol; - E2) reacting the product formed at the end of step E1) with at least one methacrylate monomer M having at least one hydroxyl function.

Transmission method and amplified spectral multiplexed optical link

The method includes dividing amplifier gain between several multiplexed carrier waves. The desired division is maintained when the number and/or power of the carrier waves move away from predetermined values. The power of the amplified light is independent of the carrier waves and the gain division gives the same amplification to all the carrier waves. An amplified laser light is passed to a coupler (16) which detects the power from a fibre optic amplifier (10). The signal is optically filtered (24) and passed to a photodiode (18). A voltage level output from the photodiode is input to an amplifier (20) and regulator (22). Signals from the regulator pass to two laser pumps (12,14). Varying the voltage input to the laser pumps adjusts gain to the overall level required for the channels used.

SINGLE-BAND OPTICAL FIBER AMPLIFIER

Bending stiffener comprising at least two body parts

L’invention concerne un raidisseur de flexion (1) destiné à coopérer localement avec un câble flexible et configuré pour limiter la courbure dudit câble flexible, le raidisseur de flexion (1) comprenant un corps (20, 30) comprenant au moins une première partie de corps (20) et au moins une deuxième partie de corps (30), le corps (20, 30) pouvant occuper une configuration séparée dans laquelle les parties de corps (20, 30) sont disjointes et une configuration assemblée dans laquelle les parties de corps (20, 30) sont montées axialement autour de l’axe du câble flexible. La première partie de corps (20) comprend une première surface de coopération (S1) comprenant un organe d’emboitement mâle (22, 23), et la deuxième partie de corps (30) comprend une deuxième surface de coopération (S2) comprenant un organe d’emboitement femelle (32,33). L’au moins un organe d’emboitement mâle (22, 23) coopère par emboitement avec l’organe d’emboitement femelle (32, 33) de manière à s’opposer à un mouvement relatif entre la première surface de coopération (S1) et la deuxième surface de coopération (S2). Figure 1 The invention relates to a bending stiffener (1) intended to cooperate locally with a flexible cable and configured to limit the curvature of said flexible cable, the bending stiffener (1) comprising a body (20, 30) comprising at least a first part body (20) and at least a second body part (30), the body (20, 30) being able to occupy a separate configuration in which the body parts (20, 30) are disjointed and an assembled configuration in which the parts bodies (20, 30) are mounted axially around the axis of the flexible cable. The first body part (20) comprises a first cooperation surface (S1) comprising a male interlocking member (22, 23), and the second body part (30) comprises a second cooperation surface (S2) comprising a female interlocking device (32,33). The at least one male interlocking member (22, 23) cooperates by interlocking with the female interlocking member (32 ...

OPTICAL AMPLIFIER OF VARIABLE GAIN AND CONSTANT THROUGH BAND, AND AUTOMATIC COMPENSATION SYSTEM OF THE VARIATIONS OF LOSSES IN AN OPTICAL LINK THAT INCLUDES SUCH AMPLIFIER.

SU GANANCIA SE REGULA MEDIANTE UNA SEÑAL (G) DE CONTROL DE GANANCIA QUE PUEDE TOMAR M VALORES DISCRETOS. SEGUN UN MODO DE REALIZACION, COMPRENDE: M}) QUE TIENE: CADA UNO UNA GANANCIA FIJADA Y DIFERENTE A LAS GANANCIAS DE OTROS AMPLIFICADORES Y UNA BANDA PASANTE IDENTICA A LA DE LOS OTROS; ENTRADA (E) ACOPLADA A LA ENTRADA (EA) DEL AMPLIFICADOR CON GANANCIA VARIABLE (AVG1), M SALIDAS (S{SUB,1}...S{SUB,M}) ACOPLADAS A LAS ENTRADAS DE LOS M AMPLIFICADORES (G{SUB,1}...G{SUB,M}) CON GANANCIA FIJADA, RESPECTIVAMENTE, Y UNA ENTRADA DE CONTROL QUE RECIBE LA SEÑAL (G) DE CONTROL DE GANANCIA; MUTADOR OPTICO (SW2) QUE COMPRENDE: M ENTRADAS(E{SUB,1}...E{SUB,M}) ACOPLADAS A LAS SALIDAS DE LOS M AMPLIFICADORES ({SUB,1}...G{SUB,M}) DE GANANCIA FIJADA RESPECTIVAMENTE, UNA SALIDA (SC) ACOPLADA A LA SALIDA (SA) DEL AMPLIFICADOR DE GANANCIA VARIABLE (AVG1), Y UNA ENTRADA DE CONTROL QUE RECIBE LA SEÑAL (G) DE CONTROL DE GANANCIA. APLICACION EN LAS CONEXIONES OPTICAS DE GRAN DISTANCIA Y AL MULTIPLEXAJE ESPECTRAL. YOUR PROFIT IS REGULATED BY A GAIN CONTROL SIGNAL (G) THAT CAN TAKE M DISCRETE VALUES. ACCORDING TO A MODE OF REALIZATION, IT INCLUDES: M}) THAT IT HAS: EACH ONE A GAIN FIXED AND DIFFERENT FROM THE GAINS OF OTHER AMPLIFIERS AND A THROUGH BAND IDENTIFY THAT OF OTHERS; INPUT (E) COUPLED TO THE INPUT (EA) OF THE AMPLIFIER WITH VARIABLE GAIN (AVG1), M OUTPUTS (S {SUB, 1} ... S {SUB, M}) COUPLED TO THE INPUTS OF THE M AMPLIFIERS (G { SUB, 1} ... G {SUB, M}) WITH FIXED GAIN, RESPECTIVELY, AND A CONTROL INPUT RECEIVING THE GAIN CONTROL SIGNAL (G); OPTICAL MUTATOR (SW2) THAT INCLUDES: M INPUTS (E {SUB, 1} ... E {SUB, M}) COUPLED TO THE OUTPUTS OF THE M AMPLIFIERS ({SUB, 1} ... G {SUB, M} ) OF RESPECTIVELY FIXED GAIN, ONE OUTPUT (SC) COUPLED TO THE OUTPUT (SA) OF THE VARIABLE GAIN AMPLIFIER (AVG1), AND A CONTROL INPUT RECEIVING THE GAIN CONTROL SIGNAL (G). APPLICATION IN THE OPTICAL CONNECTIONS OF GREAT DISTANCE AND TO THE SPECTRAL MULTIPLEXAGE.

Transmission method and an optical link using multiplexing with application

A link using spectrum multiplexing, in which link an amplifying fiber amplifies a plurality of multiplexed carrier waves. The invention makes it possible to maintain a flat spectrum distribution of the gain of the amplifying fiber when the number of carrier waves varies. For that purpose, light that is amplified by the amplifying fiber and that is independent of the carrier waves is servo-controlled in power. The light is constituted by a reverse amplified spontaneous emission. After being filtered in a filter and detected by a photodiode, the light controls the power supplied to two laser diodes for pumping the fiber. The invention applies in particular to implementing optical transmission networks.

Optical fiber amplifier device and communications system using the optical fiber amplifier device

The invention relates to an optical fiber amplifier device with an optical signal input (Sin) and output (Sout) with a first piece of amplifying fiber (A1) doped with lanthanide in a double-clad structure, a second piece of amplifying fiber (A2) doped with lanthanide in a ring structure and lasers for pumping the two fiber pieces (A1,A2) with at least one pump module (2). <IMAGE>

Raman amplifier with gain control

AMPLIFIER OPTICAL FIBER

L'invention a pour objet une fibre optique amplificatrice comprenant un coeur (22) contenant un dopant (30) et une gaine (28), dans laquelle ledit coeur comprend un coeur monomode (24) destiné à propager un signal optique, des nanoparticules (32) d'un matériau semiconducteur étant disposées dans ou à proximité dudit coeur monomode (22), et un coeur multimode (26), entourant le coeur monomode (24), destiné à recevoir un signal de pompage. The subject of the invention is an amplifying optical fiber comprising a core (22) containing a dopant (30) and a sheath (28), in which said core comprises a monomode core (24) intended to propagate an optical signal, nanoparticles ( 32) of a semiconductor material being disposed in or near said monomode core (22), and a multimode core (26) surrounding the monomode core (24) for receiving a pump signal.

Video signal encoding

A method and system for encoding a video signal provides an encoded signal that is compressed in order that it may be efficiently transmitted over the link whilst also meeting a predetermined standard in terms of its estimated perceptual quality when the signal is decoded and displayed. This is achieved by providing, at the encoding end, a control unit ( 24 ) which utilises a perceptual quality metric (PQM) system ( 32 ) to quantify the estimated perceptual quality, and control logic ( 34 ) that compares said quantified PQM with a user-defined criterion that the signal must meet prior to transmission. The signal is preferably only transmitted onwards over the communications link if the criterion is met. Otherwise, the control unit ( 24 ) is operable either to modify the signal, e.g. using pre-filtering, or use modified encoding parameters to re-encode the signal in such a way as to improve its quality, that is to make the quantified PQM converge towards the criterion. A number of iterations of this encode-modify-encode sequence may be required before the resulting PQM meets the criterion and so be transmitted. The number of iterations may be limited in which case the modified encoding should at least provide an improvement in perceptual quality.

Method for manufacturing clusters of textile fibres of the "knop" or "flake" type and production of a fancy yarn comprising them

The invention relates to a method for manufacturing clusters of textile fibres or "knops" intended to be incorporated in a fancy yarn. According to the invention, a filiform element is prepared, which is based on textile fibres attached together by at least partial adhesive bonding, so as to form a continuous unit link, the fibres of which are held secured to the assembly and this continuous link is cut into portions of suitable lengths, each portion forming an individual knop. Application to the manufacture of knops and flake yarns for fancy yarns and knops thus obtained.

Geregelter optischer verstärker

Ramanverstärker mit verstärkungsregelung

Optischer faserverstärker und kommunikationssystem unter verwendung desselben

Wellenlängenmultiplexiertes optisches übertragungssystem mit raman-verstärkung

Verfahren und vorrichtung zum niveauausgleich der leistung der kanäle eines spektral gemultiplexten optischen signals

Doppelt ummantelter faserverstärker

Optischer verstärker, übertragungssystem und verfahren zur optimierung

Wellenlängenmultiplexiertes optisches Übertragungssystem mit Raman-Verstärkung

Etiquette de marquage de produits stockes en consignation.

L'invention concerne une étiquette de marquage de produits stockés en consignation du type comprenant une étiquette de marquage (1) du produit à laquelle est raccordée de manière détachable une fiche de sortie (2). L'étiquette selon l'invention comporte en outre une étiquette détachable de consignation (3) reliée à la fiche de sortie (2) de manière à ne permettre de séparer la fiche de consignation (3) que simultanément ou antérieurement à la fiche de sortie (2). Application à la gestion des produits en consignation.

Procede pour la fabrication d'agglomerats de fibres textiles du type " bouton " ou " flamme " et production d'un fil a effet les comportant

Procede de telecommunication locale sans fil

Le procédé de télécommunication dans un groupe constitué d'une pluralité d'appareils par l'intermédiaire de connexion selon les normes IEEE 802.11 d'un réseau local sans fil sans leur implémentation sans routeur intermédiaire Wi-Fi Direct (marque déposée), comporte : - une étape (31, 32) de connexion point à point entre un appareil centralisateur et chaque autre appareil, agissant en esclave, après autorisation de connexion par l'appareil centralisateur, - une étape (38) de transmission de données sonores par un appareil esclave à l'appareil centralisateur, - une étape unique (39) de retransmission desdites données sonores, par l'appareil centralisateur à l'ensemble des appareils esclaves, en mode broadcast, et - une étape (40) d'élimination avant diffusion acoustique (41), par un appareil esclave, des données sonores qu'il a précédemment transmises à l'appareil centralisateur dans les données qu'il reçoit de l'appareil centralisateur, pour n'effectuer une diffusion acoustique que des données sonores provenant des autres appareils du groupe.

Composition à base de monomères (méth)acrylate

Composition à base de monomères (méth)acrylate La présente invention concerne une composition bicomposante réticulable comprenant : - un composant A comprenant : - un agent réducteur ; - un sel métallique choisi dans le groupe constitué des sels métalliques d’acide (méth)acrylique, des sels métalliques d’acide itaconique, et de leurs mélanges ; - au moins un monomère (méth)acrylate M1 - un composant B comprenant un agent oxydant ; ladite composition étant caractérisée en ce qu’elle comprend au moins un photo-amorceur radicalaire dans le composant A et/ou B ; ainsi que ses utilisations. FIGURE : NEANT

Optical amplifier, transmission system and method for optimization

The invention is related to an optical amplifier connected to a pump laser with lengths of fibers and isolators between the lengths of fibers. The invention is also related to a transmission system using this amplifier and in addition the invention gives also a rule to optimize the position of isolators in a amplifier.

Composition a base de monomeres (meth)acrylate

Composition à base de monomères (méth)acrylate La présente invention concerne une composition bicomposante réticulable comprenant : - un composant A comprenant : - un agent réducteur; - un sel métallique choisi dans le groupe constitué des sels métalliques d'acide (méth)acrylique, des sels métalliques d'acide itaconique, et de leurs mélanges; - au moins un monomère (méth)acrylate M1 - un composant B comprenant un agent oxydant; ladite composition étant caractérisée en ce qu'elle comprend au moins un photo-amorceur radicalaire dans le composant A et/ou B; ainsi que ses utilisations.

Optischer parametrischer faserverstärker mit einstellbarer pumpquelle

Photonische optische faser mit doppeltem mantel