Abstract

An experimental demonstration of helicopter plume detection by using a range-resolved, narrow-bandwidth, noncoherent laser Doppler velocimeter is presented. The laser Doppler velocimeter detects incoming Doppler-shifted signal photons by using the sharp spectral transmission features in a Faraday magneto-optic atomic line filter.

© 1993 Optical Society of America

Long-range, noncoherent lasers Doppler velocimeter

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Distributed laser Doppler velocimeter

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