04-05-2017 дата публикации
Номер: US20170125966A1
Принадлежит:
Rare earth oxides doped multicomponent glass fibers for laser generation and amplification, including a core and a cladding, the core comprising at least 2 weight percent glass network modifier selected from BaO, CaO, MgO, ZnO, PbO, KO, NaO, LiO, YO, or combinations; wherein the mode of the core is guided with step index difference between the core and the cladding, a numerical aperture of the fiber is between 0.01 and 0.04; core diameter is from 25 to 120 micron, and a length of the gain fiber is shorter than 60 cm. 1. An Erbium doped multicomponent glass fiber for laser generation and amplification from 1.51 to 1.65 micron wavelength , comprising:a core;a cladding; [{'sub': 2', '2', '2', '2', '3, 'said core includes at least 2 weight percent glass network modifier selected from BaO, CaO, MgO, ZnO, PbO, KO, NaO, LiO, YO, or combinations thereof; and'}, 'erbium oxide at a level from about 0.5 to about 20 weight percent; wherein:', 'a mode of the core is guided via a step index difference between the core and the cladding;', 'a numerical aperture of the fiber is between 0.01 and 0.04;', 'a core diameter is from about 30 microns to about 90 microns;', 'a length of the fiber is shorter than 60 cm., 'wherein2. The Erbium doped multicomponent glass fiber of claim 1 , wherein said erbium oxide is present at a level from about 1 to about 5 weight percent.3. The Erbium doped multicomponent glass fiber of claim 1 , wherein the core diameter is from about 35 microns to about 60 microns.4. The Erbium doped multicomponent glass fiber of claim 1 , wherein the length of the fiber is from about 4 cm to about 45 cm.5. The Erbium doped multicomponent glass fiber of claim 1 , wherein the fiber is a polarization maintain fiber. This application is a divisional from U.S. patent application Ser. No. 14/605,740, now published as US 2016/0216441, from which it claims priority. The disclosure of application Ser. No. 14/605,740 is incorporated herein by reference.This invention relates to ...
Подробнее
