Fluoride glass fiber

Details Fluoride glass fiber Fluoride glass fiber

1997-01-24

1998-06-30

Ngo, John

Optical waveguides

Having particular optical characteristic modifying chemical...

385142, 385144, 501 37, G02B 600

Patent

active

057746206

ABSTRACT:
This invention relates to fluoride glass with a specific composition having wide infrared transmission. A fluoride optical fiber using this fluoride glass can give high efficiency with a low loss. The fluoride optical fiber having a second cladding on the outer periphery of a first cladding can adjust the refractive index of the first cladding suitably.

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patent: 5483628 (1996-01-01), Borrelli et al.
patent: 5537505 (1996-07-01), Borrelli et al.
patent: 5631194 (1997-05-01), Akella et al.
"Preparation of Pr.sup.3 +-Based Fluoride Single-Mode Fibers and First Demostration of 1.3 .mu.m Amplification", Nishida et al, Proceedings ECOC'93 19th European Optical Communication, Sep. 12, 1993, pp. 1-4.
"Efficient PDFA Module Using PbF.sub.2 /InF.sub.3 -Based Fluoride Fiber", Nishida et al, Technical Digest Optical Amplif. & Their Applications, Optic. Soc.of America, Jul. 11, 1996, P1-4.
"26 dB Amplification at 1.31 .mu.m in a novel Pr.sup.3 +-Doped In F.sub.3 /GaF.sub.3 -Based Fiber", Yanagita et al, Technical Di--Digest Optical Fiber Commun., vol. 8, Feb. 26-Mar. 3, 1995, pp. 1-4.
"Optimization of Thorium-Free Indium Fluoride Glass Compositions and Application to Optical Fibers", Soufiane et al, Extended Abstracts 9th Int. Sympos.Non-Oxide Glasses (Halide Glasses), May 24-28, 1994; pp. 459-464.
"Quantum Efficiency at 1.3.mu.m of Pr.sup.3+ in InF.sub.3 -Based Fluoride Glass", Nishida et al, Extended Abstracts (The 40th Spring Meeting, 1993); The Japan Society of Applied Physics and Related Societies, No. 0.
"Preparation of InF.sub.3 -Based Fluoride Glass Fiber", Nishida et al, Extended Abstracts (THe 40th Spring Meeting, 1993); The Japan Society of Applied Physics and Related Societies, No.
"Investigation of InF.sub.3 /GaF.sub.3 -Based Fluoride Glass and High--n Fiber Fabrication", Nishida et al, Extended Abstracts (The 43rd Spring Meeting, 1996); The Japan Society of Applied Physics and Related Societies,, No. 3.
"Fabrication of Efficient PDFA Modul Using PbF.sub.2 /InF.sub.3 Based Fluoride Fiber", Nihida et al, Proceedings of the 1996 Electronics Society Conference of IEICE, Sep. 18, 1996.
"Preparation and Properties of ZnF.sub.2 -InF.sub.3 -GaF.sub.3 -PbF.sub.2 -LaF.sub.3 Glasses", Nishii et al, Physics and Chemistry of Glasses, vol. 30, No. 2 Apr. 1980, pp. 55-58.

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