This article is cited in 1 paper

Laser applications and other topics in quantum electronics

Detection of reflected radiation using the beat frequency of a two-mode laser

G. I. Kozin, V. V. Petrov, E. D. Protsenko


Abstract: A method for detection of weak reflected laser radiation using the deviation of the beat frequency of a two-mode laser is proposed and implemented experimentally. The lowest detectable effective amplitude reflection coefficient of an external mirror was 8 X 10^–8. The method was tested by recording radiation from remote diffuse reflectors.

UDC: 621.373.826:535.373

PACS: 42.62.Eh, 42.60.Jf, 42.79.Bh

Received: 25.05.1990

 English version: Soviet Journal of Quantum Electronics, 1991, 21:3, 355–357

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