Piezo-optic, total internal reflection modulator

Details Piezo-optic, total internal reflection modulator Piezo-optic, total internal reflection modulator

H - Electricity

01

S

345/57

H01S 3/10 (2006.01) G02F 1/315 (2006.01) G02F 1/33 (2006.01)

Patent

CA 1145836

- 1 - ABSTRACT OF THE DISCLOSURE A piezo-optical light modulator comprising an interaction medium and a transducer on one face of, and in optical isolation from, the interaction medium. Electrical signals are applied to create a periodic alternating strain field within the transducer. This field is transmitted into the interaction medium to create a shallow strain diffraction grating at a modulating surface. A light beam is projected so as to undergo a total internal reflection at this modulating surface, a portion of the light being selectively diffracted out of the incident beam.

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