Optical waveguide coupling device

Details Optical waveguide coupling device Optical waveguide coupling device

1983-09-08

1985-07-30

Lee, John

Radiation imagery chemistry: process, composition, or product th

Post imaging processing

Physical developing

350 9612, 35016223, 350320, 430321, G02B 518

Patent

active

045318093

ABSTRACT:
An optical waveguide coupling device which can perform switching functions by changing input light intensity, and associated method of construction thereof, in which the device comprises a base substrate etched to provide an optical grating having a predetermined grating period and amplitude. A thin metal film is deposited on the grating. Subsequently, a polymer film is deposited over the thin metal film, thus forming an optical waveguide. The field for the waveguide mode is nearly zero at the metal-polymer film interface, thus eliminating the loss of energy in the thin metal film. The metal film, in essence, reflects the input beam so that substantially no energy is lost via transmission through the thin metal film and thus all available energy is for coupling into the waveguide mode.

REFERENCES:
patent: 3898585 (1975-08-01), Heidrich et al.
patent: 4006963 (1977-02-01), Baues et al.
patent: 4227769 (1980-10-01), Phillips et al.
patent: 4286838 (1981-09-01), Huignard et al.
patent: 4431263 (1984-02-01), Garito
patent: 4436398 (1984-03-01), Endo et al.

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