Fluoride glasses and methods for making optical fibers from the

Details Fluoride glasses and methods for making optical fibers from the Fluoride glasses and methods for making optical fibers from the

1992-03-13

1994-02-08

Gonzalez, Frank

Optical waveguides

Having particular optical characteristic modifying chemical...

Of waveguide core

501 37, 501 40, 501904, G02B 600

Patent

active

052855180

ABSTRACT:
An optical fiber having a core with a composition consisting essentially of 48 to 60 mole percent ZrF.sub.4, 15 to 25 mole percent BaF.sub.2, 1 to 5 mole percent LaF.sub.3, 1 to 5 mole percent AlF.sub.3, 15 to 22 mole percent NaF, and 1 to 8 mole percent ThF.sub.4 ; and a cladding having an index of refraction lower than that of the core. The glass of the core can be doped, for example, with rare earths. Built-in casting, rotational casting, casting around a rod, and rod-in-tube methods can be used to produce optical fibers having a composition in accordance with the present invention and having improved resistance to crystallization, as compared to ZBLAN glasses, even in the presence of rare earth dopants.

REFERENCES:
patent: 4341873 (1982-07-01), Robinson et al.
patent: 4343638 (1982-08-01), Mitachi et al.
patent: 4445755 (1984-05-01), Ohsawa et al.
patent: 4659355 (1987-04-01), Maze et al.
patent: 4661413 (1987-04-01), Maze et al.
patent: 4674835 (1987-06-01), Mimura et al.
patent: 4711652 (1987-12-01), Roba et al.
patent: 4717691 (1988-01-01), Lucas et al.
patent: 4733940 (1988-03-01), Broer et al.
patent: 4749666 (1988-06-01), Lucas et al.
patent: 4756599 (1988-07-01), Manda et al.
patent: 4787709 (1988-11-01), Kawada et al.
patent: 4872894 (1989-10-01), Hutta
Danh C. Tran, George H. Sigel, Jr., and Bernard Bendow, "Heavy Metal Fluoride Glasses and Fibers: A Review", Journal of Lightwave Technology, vol. LT-2, No. 5, Oct. 1984, pp. 566-586.
Y. Ohishi, et al., "Fabrication of Fluoride Glass Single-Mode Fibers," Journal of Lightwave Technology, vol. LT-2, No. 5, Oct. 1984, pp. 593-596.
"Advanced Rod-in-tube Techniques For Fluoride Fiber Fabrication," presented in 93rd Annual Meeting of the American Ceramics Society, Cincinnati, Ohio (Apr. 28-May 2, 1991).
Tran et al., "Fluoride Glass Performs Prepared by a Rotational Casting Process," Electronics Letters, 23rd vol. 18, No. 15, Ju. 1982.
S. Mitachi, et al., "Preparation of Fluoride Optical Fibers For Transmission in the Mid-infrared," Physics and Chemistry of Glasses, vol. 23, No. 6, Dec. 1982.

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