Abstract

When a portion of the light backscattered from a moving diffuse target is allowed to reenter the source laser, at the Doppler frequency is observed. This paper analyzes the SNR expected modulation of the laser power laser Doppler velocity measurements. A peak in the signal-to-noise when this phenomenon is used to make is predicted for the laser operated at its threshold gain.

© 1984 Optical Society of America

Laser Doppler velocimetry by modulating a CO₂ laser with backscattered light

James H. Churnside
Appl. Opt. 23(1) 61-66 (1984)

Laser Doppler velocimeter for velocity and length measurements of moving surfaces

Bruce E. Truax, Frank C. Demarest, and Gary E. Sommargren
Appl. Opt. 23(1) 67-73 (1984)

Two-Color Dual-Beam Backscatter Laser Doppler Velocimeter

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

Measurements of particle number density using the variable-fringe-spacing laser Doppler velocimeter

K. Tedjojuwono, T. Asakura, and Y. Kawase
Appl. Opt. 23(15) 2554-2558 (1984)

Potential for coherent Doppler wind velocity lidar using neodymium lasers

Thomas J. Kane, Bingkun Zhou, and Robert L. Byer
Appl. Opt. 23(15) 2477-2481 (1984)