PREFORM MANUFACTURING METHOD FOR NON-SILICA OPTICAL FIBER
The present invention refers to search for optical fiber preform manufacturing method relates to non-car orgin, non-ratio characteristic for optical fiber preform manufacturing method is provided to increase car orgin [...] number are disclosed. Generally, optical fiber light transmission core with total reflection light in the hollow core and has a refractive index lower than the core to core surrounding clad to in the nanometer range. The fiber optic for an optical fiber preform (Optical Fiber Preform) trip strand number by drawing high pressure liquid coolant therein. A preform for optical fiber number bath during chemical vapor deposition (Modified Chemical Vapor Deposition, hereinafter MCVD naming,) the pin is of the existing method method method. MCVD method typically is sent together with oxygen gas while using a raw material gas heating heat outside of quartz tube inside which a preform by depositing glass film layer unit repeatedly number bath method such as domestic opening patent number 10 - 2007 - 00925112 call variously disclosed disclosed. On the other hand, when a tank car orgin non-migratory number without chemical vapor deposition equipment for optical fiber preform, inserting a core rod having a hollow core silicon thin film to a heat treating process in clad tube adding volume through the way is separated, in this case if thermofusion process number would have to be stress, a very good form on the inner peripheral surface of clad tube for roughness number pin is difficult since small drainage holes. In addition, another number as trillion methods for optical fiber preform, a cladded to the first hollow core material in a molten state in the case of bath solution by adding volume injected into how number covers fitted with special stress occurrence of crack number motor are disclosed. The present invention refers to said door for lowering a number such as improving as, high pressure liquid coolant to replace natural number that can take stress number can be simplified during the volatile oxide or a preform for optical fiber manufacturing method number number time or non-real car orgin [...] pin is used. The purpose of the present invention according to the invention for optical fiber preform manufacturing method in order to achieve said non-car orgin. The steps of forming a core outer diameter and non-circular cylinder number 1 car orgin material; or. Core rod is inserted into said upper be ceiling or a groove, said groove formed at a location spaced apart from the ceiling down injection holes upper and when, said core rod is inserted into the lower end or a bottom surface groove bottom and upwardly from the annular ring part of restraint on lubricating oil formed edge height, said restraint state injected through said injection hole in a receiving material which is housed in a lower within cap can be separated from the lower surface and the interconnect number 1 and number 2 is separated from longitudinally divided into said core rod of the handle unit is started and said mold having a divided semi-inserting said upper opening, said number 1 and number 2 division as a result of half-circle lower said cover and mold assembly state; disclosed. Said upper mold plate injection hole in a low index than said core rod through said non-car orgin clad material number 1 and a glass transition temperature rather than to the control temperatures; as. Said core rod and a finishing up said clad material is said to be held at the mold; the FEP. Heating said mold cooling process; without using a tool. Preferably clad material than said glass transition temperature of 150 to 200 °C temperature said number 1 to the control temperature received signals. In addition, the multi-step which can be employed for heating said mold heater encloses said said number 1 number 2 temperature below the temperature said clad material heating said mold 30 molar degree to 1e14 ions. In addition, as -1 said phase. Said mold temperature and the temperature of the number 2 until the warming withholding; -2 as. Said mold temperature reaches a set temperature of the temperature maintaining number 1 number 2 number 2 time; can be applied. Glass transition temperature than said number 2 temperature 10 °C 40 °C than applying high glass transition temperature in the low temperature in the temperature range within, said number 1 time is 3 hr to 5 time applying substrate. In addition, said clad material comprises Al (PO3 )3 - BaF2 (Mg, Ca, Sr) F -2 , Mg (PO3 )2 - BaF2 (Mg, Ca, Sr) F -2 And either, said core rod material comprises (1 - 10 wt %) RF3 - Mg (PO3 )2 - BaF2 - CaF2 , (1 - 10 Wt %) RF3 provided Al (PO3 )3 - BaF2 - CaF2 And either, the R Er, Yb, Nd, Eu, Tb either of the received signals. The present invention according to the non-car orgin preform for optical fiber manufacturing method, the wetting ability can be enhanced without photoresist process number stress required lower number [...] substrate. Figure 1 shows a mold for optical fiber preform manufacturing method applied to the present invention according to car orgin also non-separating sensors mounted thereon and shown to separation, Figure 2 shows a perspective view of Figure 1 and a mold core rod mounted exhibit assembled state, Figure 3 shows a injection hole in a liquid state through a cross-sectional drawing of Figure 2 implanted exhibit clad subject matter are disclosed. Hereinafter, with reference to the attached drawing for optical fiber preform manufacturing method of the present invention preferred embodiment according to car orgin non-more detailed as follows. Figure 1 shows a mold for optical fiber preform manufacturing method applied to the present invention according to car orgin also non-separating perspective view shown to separation and, Figure 2 shows a perspective view and a mold core rod mounted exhibit assembled state, into the cross-section of Figure 1 through Figure 3 of Figure 2 injection hole in a solid solution state clad subject matter are disclosed. First, outer diameter non-circular cylinder number 1 car orgin material core rod (10) formed on the substrate. Wherein, core rod (10) has a diameter of 1 to 5 mm, 100 to 200 mm in length sugars other. Core rod (10) is rotatably installed treated with various publicly known method after prepared by the number into an outer collects with each other. Core rod (10) is provided which has the material of the non-real racah orgin sugars disclosed. Core rod (10) in one example material of (1 - 10 wt %) RF3 - Mg (PO3 )2 - BaF2 - CaF2 , (1 - 10 Wt %) RF3 provided Al (PO3 )3 - BaF2 - CaF2 Either can be applied. Wherein, R is Er, Yb, Nd, Eu, Tb either of the received signals. In addition, (1 - 10 wt %) RF3 - Mg (PO3 )2 - BaF2 - CaF2 The RF3 Is Mg (PO3 )2 - BaF2 - CaF2 About 1 - 10 wt % relative to the weight of the entire big. The core rod (10) material 460 - 560 degrees and a glass transition temperature, the melting temperature is 1100 - 1250 degree of received signals. Next mold (30) core rod (10) is inserted into the assembled substrate. The mold (30) is capable of being assembled and provided with a top plate (31), the lower cap (33), number 1 and number 2 division as a result of half-circle (35) (36) to be disclosed. Upper disk (31) are formed in the disk-like and, core rod (10) is inserted into the upper end of the ceiling to be home (31a) is centrally formed on the bottom, ceiling home (31a) and down at a location spaced apart from the injection hole formed in the nanometer range. On one other shown a top disk (31) number 1 and number 2 division as a result of half-circle carry the edge which extend downwardly [...] (35) (36) formed on the upper portion of surrounding supporting state can be applied to the concave disclosed. The lower cap (33) core rod (10) is inserted into the lower end of the bottom and groove (33a) are formed in a circular bottom surface center, circular bottom edge upwardly from the annular restraint on the lower die height (33b) is formed with in the nanometer range. Wherein restraint lower die (33b) is number 1 and number 2 division as a result of half-circle (35) (36) adapted to permit the supporting of restraint portion with each other. Number 1 and number 2 division as a result of half-circle (35) (36) formed in the circumferential surface to the first hollow cylindrical to in the nanometer range. Number 1 and number 2 as a result of half-circle division (35) (36) the lower cap (33) the lower die constraint (33b) to be received into the constraining condition in on an injection hole in (31b) is injected through a material receiving space can be received (37) provided with a configuration which can be formed in the semiconductor substrate. I.e., number 1 and number 2 division as a result of half-circle (35) and (36) may be hollow cylindrical safety device for vertically bisected onto and down so that the disclosed. Wherein, mold (30) having an inner diameter i.e., number 1 and number 2 division as a result of half-circle (35) (36) of the elliptic cylinder along each other when assembled in close contact with the cylinder (37) is 10 to 20 mm inner diameter of the first and second substrate. Such molds (30) of the disk (31) the handle (33) between the core rod (10) is inserted into a, number 1 and number 2 division as a result of half-circle (35) (36) lower cap (33) received in a state mould (30) assembly substrate. Assembled mold (10) has a receiving space (37) in core rod (10) extend over a vertical supporting state while the injection holes (31b) through the space (37) is under or over inject substances into a state that may result. Then, mold (30) of the disk (31) of injection holes (31b) through core rod (10) a low index than non-car orgin clad material (20) to the data number 1 glass transition temperature confines temperatures each other. Preferably mold (30) which can be employed for warming encloses a heater (50) set temperature lower than that of the number 1 to number 2 mould (30) 30 clad material up (20) mold (30) of injecting cells into a substrate. Wherein, heater (50) is a keep-warm housing (60) mounted in the container mold (30) can be made up without thermal coil heater is exemplified, on one shown for a variety of heater may be applied to the engine are disclosed. In addition, mold (30) to clad material (20) before injecting heater (50) held by temperature clad subject matter number 2 (20) with reference to the glass transition temperature of 10 °C 40 °C than glass transition temperature than a glass transition temperature in high degree low temperature in the temperature range within suitably applied to the surface of the substrate. On the other hand, number 1 temperature clad material (20) than glass transition temperature of 150 to 200 °C to the control temperature received signals. In this case clad material (20) and then melted in a 1100 to 1250 °C temperature regulation in the process number 1 can be brought to temperature and then mold (30) impregnating with each other. In addition, clad material (20) is non-car orgin though core rod (10) than the application of the low material are disclosed. Clad material (20) is in one example, Al (PO3 )3 - BaF2 (Mg, Ca, Sr) F -2 , Mg (PO3 )2 - BaF2 (Mg, Ca, Sr) F -2 Either can be applied. The cladding material (20) and a glass transition temperature 450 to 550 °C, and the melting temperature is the application of the 1100 provided 1250 °C are disclosed. Number 1 temperature clad material (20) mold (30) pumped then clad material (20) core rod (10) to a finishing to a mold (30) returning heating state. Warming process mold (30) when a temperature number 1 temperature clad subject matter (20) for feeding through the mold and then heating until the number 2 number 2 when temperature than withholding (30) set number 1 number 2 number 2 to raise the temperature in temperature attained a temperature in the reaction chamber. Wherein, number 1 time is 3 hr to 5 time received signals. The core rod (10) outside clad subject matter (20) formed from a number 2 through which heating is a finishing process heating temperature during establishment and maintenance to mold (30) excellent cooling a substrate. Natural cooling to room temperature cooling parallel with each other. After mold (30) separating the elder brother process which burns the preform for optical fiber via non-car orgin are complete number of oxide. The non-car orgin preform for optical fiber manufacturing method described above, the wetting ability can be enhanced without photoresist process number stress required lower number [...] substrate. 10: Core rod 20: clad material 30: Mold 50: heater The present invention relates to a method of manufacturing a preform for a non-silica optical fiber. The method includes: a step of forming a cylindrical core rod having a first external diameter with a non-silica material; a step of forming an upper disc including a ceiling groove formed on the center to insert the upper part of the core rod into and an injection hole vertically penetrated on a position at a distance from the ceiling groove, a lower cap including a floor groove formed to insert the lower part of the core rod into and a locking ring part formed upwards from the edge, and a storage space stored in the lower cap to store substances injected through the injection hole, and then, inserting the core rod between a lower cap and an upper disc of a mold including first and second divided semicircular containers, and assembling the mold while the first and second containers are stored in the lower cap; a step of injecting a non-silica clad material of a lower refractive index than the core rod through the injection hole of the upper disc at a first temperature which is set to be higher than a glass transition temperature; a step of heating the mold to thermally fuse the clad material with the core rod; and a step of cooling the mold after the heating. As such, the method of manufacturing a preform is capable of increasing process reproducibility without the need for a stress removal procedure. COPYRIGHT KIPO 2018 Is. The steps of forming a core outer diameter and non-circular cylinder number 1 car orgin material; or. Core rod is inserted into said upper be ceiling or a groove, said groove formed at a location spaced apart from the ceiling down injection holes upper and when, said core rod is inserted into the lower end or a bottom surface groove bottom and upwardly from the annular ring part of restraint on lubricating oil formed edge height, said restraint state injected through said injection hole in a receiving material which is housed in a lower within cap can be separated from the lower surface and the interconnect number 1 and number 2 is separated from longitudinally divided into said core rod of the handle unit is started and said mold having a divided semi-inserting said upper opening, said number 1 and number 2 division as a result of half-circle lower said cover and mold assembly state; disclosed. Said upper mold plate injection hole in a low index than said core rod through said non-car orgin clad material number 1 and a glass transition temperature rather than to the control temperatures; as. Said core rod and a finishing up said clad material is said to be held at the mold; the FEP. Heating said mold cooling process; characterized in including a preform for an optical fiber manufacturing method. According to Claim 1, 100 to 200 mm and said core bar length, said mold having an inner diameter of 10 to 20 mm applying a preform for an optical fiber manufacturing method characterized. According to Claim 1, said number 1 clad material than said glass transition temperature of 150 to 200 °C temperature to the control temperature characterized for an optical fiber preform manufacturing method. According to Claim 3, said heater heating said mold surrounds the step number 2 temperature below the temperature which can be employed said number 1 injecting said clad material characterized said mole degree non-car orgin 30 heating said mold for optical fiber preform manufacturing method. According to Claim 4, as -1 said phase. Said mold temperature and the temperature of the number 2 until the warming withholding; -2 as. Said mold temperature reaches a set temperature of the temperature maintaining number 1 number 2 number 2 time; characterized in including a preform for an optical fiber manufacturing method. According to Claim 5, glass transition temperature and glass transition temperature to + 40 °C -10 °C temperature said number 2, characterized in that said number 1 time is 3 hr to 5 time for an optical fiber preform manufacturing method. According to Claim 5, said clad material comprises Al (PO3 )3 - BaF2 (Mg, Ca, Sr) F -2 , Mg (PO3 )2 - BaF2 (Mg, Ca, Sr) F -2 And either, said core rod material comprises (1 - 10 wt %) RF3 - Mg (PO3 )2 - BaF2 - CaF2 , (1 - 10 Wt %) RF3 provided Al (PO3 )3 - BaF2 - CaF2 And either, the R Er, Yb, Nd, Eu, Tb applied to either of the preform for an optical fiber manufacturing method characterized.
