Abstract

The cw, interpulse, and intrapulse frequency stabilities of a compact, sealed-off CO₂ Doppler lidar transmitter are characterized. A cw stability of 1 part in 5 × 10¹¹ for 1-s averaging times, maximum pulse-to-pulse frequency deviations of ±49 kHz for periods of seconds at a pulse repetition frequency of 1 kHz, and pulses with low-frequency chirp are demonstrated in a instrument suitable for the field.

© 1992 Optical Society of America

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