Abstract
Laser systems for use in differential absorption lidar (DIAL) can benefit from high repetition and tuning rates. To date, rapidly tuned CO2 lasers have used small galvo-dirven mirrors or gratings to randomly access lines at rates up to about 200 Hz; or have used rapidly rotating mirrors or prisms to sequentially tune through all lines at speeds up to 40 kHz in bursts at a few hundred Hz.
© 1996 Optical Society of America
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