Coherent light generators – Particular component circuitry – Optical pumping
Patent
1986-07-28
1988-08-02
Laroche, Eugene R.
Coherent light generators
Particular component circuitry
Optical pumping
350355, 350 364, 350169, 372 21, G03H 102, G02F 101, G02B 523, G02B 2710
Patent
active
047610590
ABSTRACT:
A coupled laser system includes a plurality of substantially parallel beams of coherent radiation with an output beam of coherent radiation at an oblique angle with respect to the plurality of beams. A photorefractive element is positioned to receive the plurality of beams and the output beams, the beams being frequency locked to within the photorefractive bandwidth of the photorefractive element such that laser energy is diffracted from the plurality of beams to the output beam by means of two-wave mixing. A lens may be used for focussing the parallel beams in the photorefractive element, while a plurality of mirrors may be supplied for adjusting the orientation of the output beam within the photorefractive element. Another coupled laser system includes a plurality of lasers, each laser providing a beam of coherent radiation, an optical resonant cavity, and a photorefractive element positioned within the resonant cavity, the beam being frequency locked to within the photorefractive bandwidth of the photorefractive element such that laser energy is diffracted from the coherent beams to a coupling beam in the resonant cavity by means of two-wave mixing. The resonant cavity is defined by a unidirectional ring resonator, with a partially reflecting mirror, a first substantially 100% reflecting mirror, and a second substantially 100% reflecting mirror.
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Ewbank Mark D.
Khoshnevisan Mohsen
Yeh Pochi A.
Deinken John J.
Hamann H. Fredrick
LaRoche Eugene R.
Malin Craig O.
Rockwell International Corporation
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