Optical fiber insensitive to temperature variations

Details Optical fiber insensitive to temperature variations Optical fiber insensitive to temperature variations

1981-09-24

1984-02-21

Lee, John D.

65 33, 65117, G02B 5172

Patent

active

044326068

ABSTRACT:
Metal-coated optical fibers are often employed in high temperature optical communications applications. However, such optical fibers have been found to evidence a substantial decrease in optical transmission as a function of increased temperature. Optical fibers having a temperature-insensitive optical transmission are obtained by annealing a metal-coated optical fiber at a temperature at which optical transmission is substantially the same as that observed at room temperature. Aluminum-coated optical fibers annealed at 560.degree. C. evidence an optical transmission independent of temperature between about -200.degree. C. and at least about 560.degree. C.

REFERENCES:
patent: 2880552 (1959-04-01), Whitehurst
patent: 3019515 (1962-02-01), Whitehurst et al.
patent: 3395994 (1968-08-01), Cuff
Pinnow et al., "Hermetically Sealed High Strength Fiber Optical Waveguides", Trans. of IECE of Japan, vol. E61, No. 3, Mar. 1978, pp. 171-173.
Pinnow et al., "Reductions in Static Fatigue of Silica Fibers by Hermetic . . . ", Appl. Phys. Lett., vol. 34, No. 1, Jan. 1979, p. 17-19.

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