Optical waveguide with protective coating

Details Optical waveguide with protective coating Optical waveguide with protective coating

1977-06-06

1979-11-06

Corbin, John K.

Stock material or miscellaneous articles

Composite

Of bituminous or tarry residue

65 3B, 350 9630, 428388, G02B 514, C03C 2502

Patent

active

041733932

ABSTRACT:
An optical waveguide includes a core of high purity fused silica, a cladding of high purity fused silica and a protective coating of metallic glass. The protective coating is applied as a liquid which contracts more than the glass after it solidifies to place the surface of the glass cladding under compression. Because the waveguide will break only under tension, the force of compression must be overcome before the waveguide can be fractured thereby strengthening the waveguide considerably. The metallic glass coating provides further advantages of abrasion protection and the prevention of fatigue.

REFERENCES:
patent: 3019515 (1962-02-01), Whitehurst et al.
patent: 3157726 (1964-11-01), Hicks, Jr. et al.
patent: 3659915 (1972-05-01), Maurer et al.
patent: 3711262 (1973-01-01), Keck et al.
patent: 3732425 (1973-05-01), Ellert et al.
patent: 3962515 (1976-06-01), Dumbaugh, Jr. et al.

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