Output steerable optical phased array

Details Output steerable optical phased array Output steerable optical phased array

1991-10-09

1993-08-03

Lee, John D.

Optical waveguides

Temporal optical modulation within an optical waveguide

Electro-optic

385 14, 385 27, G02B 610

Patent

active

052336735

ABSTRACT:
Optical phased arrays employing a large number of light emitters and optical phase delays between adjacent emitters to steer and focus an optical beam from the contributions of all the light emitters. The array can include a laser oscillator (22) as the light source, with the laser light being conducted via optical waveguides (26, 30 and 32) into optical fibers (34), with phase delays being effected by piezoelectric or electro-optic effects on the optical waveguides. The array can be used in a low cost display device for generating optical images or in an optical memory.

REFERENCES:
patent: 4502037 (1985-02-01), Le Parquier et al.
patent: 4718069 (1988-01-01), Streifer et al.
patent: 4940303 (1990-07-01), Abeles et al.
patent: 5010346 (1991-04-01), Hamilton et al.
patent: 5023882 (1991-06-01), Paoli
K. Takizawa, "Electrooptic Fresnel Lens-Scanner with An Array of Channel Waveguides"; Applied Optics, vol. 22, No. 16, Aug. 1983.
An information sheet issued by the Defence Technology Enterprises, Ltd., Royal Signals and Radar Establishment, Worcestershire, UK. (3 pp.) (1988).

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