Directional pedestal-free laser Doppler velocimetry without frequency biasing. Part 1

Abstract

The spatial structure of the optical field on the detector of a laser Doppler velocimeter is examined. It is shown that for sufficiently small scatterers, the optical field is a traveling wave of shape determined by the detector optics alone. The direction of travel of the optical field reflects that of the scattering particle. Thus, the direction of motion of the particle is determined by temporal correlation of photocurrents from two spatially offset detector arrays. The arrays also eliminate the Doppler pedestal as shown by Ogiwara (1979). In this paper, the theory of the new method is described; experimental implementation will be described in a complementary paper.

© 1981 Optical Society of America

Directional laser velocimetry without frequency biasing: part 2

Yogesh Agrawal and James B. Riley
Appl. Opt. 23(1) 57-60 (1984)

Miniature, solid state photon correlation laser Doppler velocimetry

Robert G. W. Brown, James G. Burnett, John Mansbridge, Christopher I. Moir, and Brian S. Lowans
Appl. Opt. 29(22) 3291-3302 (1990)

Removal of Pedestals and Directional Ambiguity of Optical Anemometer Signals

F. Durst and M. Zaré
Appl. Opt. 13(11) 2562-2579 (1974)

Laser Doppler velocimetry with a compact disc pickup

Franco Quercioli, Andrea Mannoni, and Bruno Tiribilli
Appl. Opt. 37(25) 5932-5937 (1998)

Laser Doppler velocimetry: analytical solution to the optical system including the effects of partial coherence of the target

H. T. Yura, S. G. Hanson, and L. Lading
J. Opt. Soc. Am. A 12(9) 2040-2047 (1995)