Solar resistant optical fiber and method

Optical waveguides – Optical fiber waveguide with cladding – Utilizing multiple core or cladding

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385141, 65 601, G02B 602

Patent

active

059012641

ABSTRACT:
Solar resistant fused silica optical fiber is made by heating the starter rod, drawing the fiber, and preferably immediately diffusing hydrogen into the fiber, then promptly covering the hydrogen diffused fiber with hermetic coating to trap the hydrogen within the fiber. The presence of hydrogen in the fiber neutralizes UV radiation induced defects and because the hydrogen can only migrate through the fiber ends, the life of the solar resistant fiber for transmission wavelengths is increased by several years over conventional solar resistant fiber.

REFERENCES:
patent: 5059229 (1991-10-01), Blankenship et al.
patent: 5267343 (1993-11-01), Lyons et al.
patent: 5274734 (1993-12-01), Jin et al.
patent: 5621843 (1997-04-01), Neuberger

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