Method and apparatus for providing multiple independently...

Details Method and apparatus for providing multiple independently... Method and apparatus for providing multiple independently...

2006-02-21

2006-02-21

Harvey, Minsun Oh (Department: 2828)

Coherent light generators

Particular beam control device

Q-switch

C372S009000

Reexamination Certificate

active

07003003

ABSTRACT:
A laser output beam is directed into an acousto-optic cell. The acousto-optic cell is driven by RF voltages at a plurality of different frequencies. Portions of the laser output beam are diffracted by the acousto-optic cell at a plurality of different angles corresponding the different drive frequencies. The different portions of the output beam define a plurality of secondary beams. The magnitude of the RF voltages applied to the acousto-optic cell and the power in the laser output beam may be cooperatively varied to provide a predetermined power in each of the secondary beams.

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D.C. Thompson et al., “Acousto-Optically Tuned Isotopic CO2Lasers for Long-Range Differential Absorption LIDAR,”Proceedings of the SPIE—The International Society for Optical Engineering, vol. 3383, Apr. 1998, pp. 33-44.

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