Title :
Laser analysis of environmental noise
Author :
Fetterman, Charles C.
Author_Institution :
University of California, Livermore, CA
fDate :
4/1/1973 12:00:00 AM
Abstract :
Environmental noise induces frequency instabilities in lasers. By analyzing these instabilities, we can determine the characteristics of the noise and thus identify the source, using the laser, in effect, as a supersensitive "microphone." The techniques described in this paper can be used for supersensitive detection and identification of extremely low-level noise sources.
Keywords :
Convolution; Fast Fourier transforms; Fourier transforms; Frequency; Infrared spectra; Laser noise; Laser radar; Temperature; Vibrations; Working environment noise;
Journal_Title :
Audio and Electroacoustics, IEEE Transactions on
DOI :
10.1109/TAU.1973.1162439
