Abstract

A method is described of applying a variable frequency-shift to a laser beam, by means of Bragg cells, in which the direction of the output diffracted beam is unaffected by the magnitude of the applied shift. Applications of the technique to reference-beam and Doppler-difference forms of laser anemometry are discussed together with methods of obtaining increased dynamic range.

© 1981 Optical Society of America

Zero frequency shift Bragg cell beam deflection and translation

F. W. Freyre
Appl. Opt. 20(22) 3896-3900 (1981)

Deviation-free Bragg cell frequency-shifting: erratum

J. B. Abbiss and W. T. Mayo
Appl. Opt. 20(8) 1277-1278 (1981)

A frequency shifting of LDV for blood velocity measurement by a moving wedged glass

T. Eiju, K. Matsuda, J. Ohtsubo, K. Honma, and K. Shimizu
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Removal of Pedestals and Directional Ambiguity of Optical Anemometer Signals

F. Durst and M. Zaré
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High frequency laser Doppler measurements using multiaxial-mode lasers

D. Dopheide and F. Durst
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