Optical deflecting apparatus

Details Optical deflecting apparatus Optical deflecting apparatus

1989-07-24

1990-07-10

Gonzalez, Frank

350 9614, G02B 610

Patent

active

049403044

ABSTRACT:
An optical deflecting apparatus comprises optical deflectors each having a first generator for generating a first surface acoustic wave which advances to intersect an optical path of a guided optical wave advancing in an optical waveguide and deflects the guided optical wave, and a second generator for generating a second surface acoustic wave which advances to intersect the optical path of the guided and deflected optical wave and deflects the guided and deflected optical wave in a direction that amplifies the deflection. The first and second surface acoustic wave generators are formed to continuously change the frequencies of the first and second surface acoustic waves and the directions of advance thereof while satisfying specific conditions. The optical waveguides of the optical deflectors are disposed so that the optical waves radiated out of the optical waveguides scan in a line on a predetermined surface, and scanning extremities of the adjacent radiated optical waves adjoin each other.

REFERENCES:
patent: 4595253 (1986-06-01), Yamashita et al.
patent: 4815802 (1989-03-01), Nakamura

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