Crystalline optical fiber and its method of manufacture

Details Crystalline optical fiber and its method of manufacture Crystalline optical fiber and its method of manufacture

1987-03-16

1989-09-12

Sikes, William L.

Plastic and nonmetallic article shaping or treating: processes

Outside of mold sintering or vitrifying of shaped inorganic...

Including plural heating steps

350 9629, 350 9634, 264 15, G02B 602

Patent

active

048654183

ABSTRACT:
A crystalline metal halide optical fiber having a two or a three layer structure. The core consists of relatively small crystals. An inner crust surrounds the core and has the same composition but consists of relatively large crystals. An optical outer crust surrounds the inner crust and has a different composition from the inner crust but has generally the same sized crystals. The differing crystal sizes can be produced from a preform by extruding a crystal at a low uniform temperature at a relatively high speed.

REFERENCES:
patent: 4253731 (1981-03-01), Anderson et al.
patent: 4428646 (1984-01-01), Lighty
patent: 4490008 (1984-12-01), Murakami et al.
patent: 4521073 (1985-06-01), Murakami et al.
patent: 4678274 (1987-07-01), Fuller
Patent Abstracts of Japan, vol. 7, No. 64, 03/17/83, European Patent Search.

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