Temperature-insensitive optical fibers

Details Temperature-insensitive optical fibers Temperature-insensitive optical fibers

1982-10-01

1984-11-13

Lee, John

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

350 9633, 501 37, G02B 5172

Patent

active

044822057

ABSTRACT:
A temperature-insensitive fiber comprises a lightpropagating core having ##EQU1## not in excess of 5.5.times.10.sup.-6 K.sup.-1, wherein n represents the ractive index, T represents the temperature, and .rho. represents the density of the core material, a cladding layer on the core with a Poisson ratio about equal to that of the core; a substrate layer on the cladding layer having a Young's modulus greater than that of the core, a Poisson ratio about equal to that of the core, thermal expansion co-efficient not more than one fourth of that of the core, and a thickness of at least five times greater than the radius of the core; and an elastomeric protective layer on the substrate layer.

REFERENCES:
patent: 4089586 (1978-05-01), French et al.
patent: 4213672 (1980-07-01), Aulich et al.
patent: 4265667 (1981-05-01), Ikeda et al.
patent: 4295739 (1981-10-01), Meltz et al.
patent: 4373768 (1983-02-01), Clarke
patent: 4417782 (1983-11-01), Clarke et al.
patent: 4432606 (1984-02-01), Blair
Waxler et al., J. Res. NBS 77A:6, pp. 755-763, Nov.-Dec., 1973.
Waxler et al., J. Res. NBS 75A:3, pp. 163-174, May-Jun., 1971.
Ramaswamy et al., App. Opt. 18:24, pp. 4080-4084, Dec. 15, 1979.
Lagakos et al., App. Opt. 20:13, pp. 2305-2308, Jul. 1, 1981.

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