Abstract

A newly developed laser Doppler velocimeter is described. The basic optical component of the instrument is a two-dimensional ultrasonic Bragg cell. It is shown that use of this Bragg cell simplifies the optics usually required for the more conventional velocimeters, allows measurement of two-vector components of velocity, requires no adjustment of alignment mirrors, and enables both velocity component signals to be detected with a single detector. Some results from experiments using this velocimeter in an atmospheric application are described.

© 1973 Optical Society of America

Two-Component Dual-Scatter Laser Doppler Velocimeter with Frequency Burst Signal Readout

D. B. Brayton, H. T. Kalb, and F. L. Crosswy
Appl. Opt. 12(6) 1145-1156 (1973)

Confocal Backscatter Laser Velocimeter with On-Axis Sensitivity

Kenneth L. Orloff and Samuel E. Logan
Appl. Opt. 12(10) 2477-2481 (1973)

Two-Color Dual-Beam Backscatter Laser Doppler Velocimeter

George R. Grant and Kenneth L. Orloff
Appl. Opt. 12(12) 2913-2916 (1973)

Design Considerations for a 3-D Laser Doppler Velocimeter for Studying Gravity Waves in Shallow Water

Robert J. Hallermeier
Appl. Opt. 12(2) 294-300 (1973)

Laser Doppler velocimeter that selectively measures a specified velocity vector

Osami Sasaki, Takeo Abe, Tomio Shimizu, and Masaki Niwayama
Appl. Opt. 19(2) 289-292 (1980)