Process for producing an optical waveguide

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United States of America Patent

PATENT NO 4766954
SERIAL NO

07129058

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Abstract

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There is disclosed a process for producing an optical waveguide comprising contacting at least one optically smooth surface of a single crystal of K.sub.1-x Rb.sub.x TiOMO.sub.4 wherein x is from 0 to 1 and M is P or As with a specified molten salt of at least one of Rb, Cs and Tl at a temperature of from about 200.degree. C. to about 600.degree. C. for a time sufficient to increase the surface index of refraction at least about 0.00025 with respect to the index of refraction of the starting crystal, and cooling the resulting crystal. The product made thereby and a waveguide device using the same are also disclosed.

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Patent Owner(s)

Patent OwnerAddress
E I DU PONT DE NEMOURS AND COMPANY A DE CORPWILMINGTON NEW CASTLE DE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bierlein, John D Wilmington, DE 10 140
Brixner, Lothar H West Chester, PA 9 157
Ferretti, August Wilmington, DE 14 130
Hsu, William Yang-Hsing Wilmington, DE 1 27

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