This article is cited in 111 papers

Laser applications and other topics in quantum electronics

Compensation of thermally induced polarisation distortions in Faraday isolators

E. A. Khazanov

Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod

Abstract: Two new Faraday isolator designs are proposed. They make it possible to compensate partly for the depolarisation of radiation which occurs in magneto-optical elements because of the photoelastic effect caused by heating associated with the absorption of laser radiation. Analytic and numerical comparisons of the new and traditional designs demonstrate a significant (by orders of magnitude) increase in the isolation ratio of the new isolators. The results obtained indicate that it should be possible to construct a Faraday isolator with the isolation ratio of 30 dB for laser radiation with an average power of several kilowatts.

PACS: 78.20.Ls, 85.70.Sq

Received: 08.09.1998

 English version: Quantum Electronics, 1999, 29:1, 59–64

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