Producing integrated optical circuits

Details Producing integrated optical circuits Producing integrated optical circuits

1974-12-06

1976-04-27

Smith, Ronald H.

Coating processes

Electrical product produced

Welding electrode

96 351, 20415914, 20415916, 264 22, 350 96WG, 427 54, 427164, B05D 306

Patent

active

039536203

ABSTRACT:
A technique for the fabrication of integrated optical circuits is described wherein a transparent polymer film, which is doped with a polynuclear aromatic thiol having higher index of refraction than the polymer, is deposited from a liquid solution on a smooth substrate. Upon selective exposure to radiation there is a substantial reduction or elimination of the mobility and volatility of the dopant in the polymer matrix, a phenomenon known as "photolocking". The described class of dopant permits the attainment of higher resolution than previously reported, as well as the preparation of optical direction couplers having higher coupling strengths than those of the prior art.

REFERENCES:
patent: 3084116 (1963-04-01), Louthan
patent: 3175992 (1965-03-01), Anderson
patent: 3372100 (1968-03-01), Charlesby et al.
patent: 3689264 (1972-09-01), Chandross et al.
patent: 3809686 (1974-05-01), Chandross et al.
patent: 3809732 (1974-05-01), Chandross et al.
patent: 3832421 (1974-08-01), Morgan
patent: 3843572 (1974-10-01), Morgan
Kosar, J. "Light-Sensitive Systems," pp. 167 and 168, 1965.

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