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Appl Opt. 2009 Dec 10;48(35):6651-61. doi: 10.1364/AO.48.006651.

Polarization induced instabilities in external four-mirror Fabry-Perot cavities.

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  • 1Laboratoire de l'Accélérateur Linéaire, CNRS, Institut National de Physique Nucléaire et Physiquedes Particules, Université Paris Sud, Bâtiment 200, BP 34 Orsay Cedex, France. zomer@lal.in2p3.fr

Abstract

Various four-mirror optical resonators are studied from the perspective of realizing passive stacking cavities. A comparative study of the mechanical stability is provided. The polarization properties of the cavity eigenmodes are described, and it is shown that the effect of mirror misalignments (or motions) induces polarization and stacking power instabilities. These instabilities increase with the finesse of the Fabry-Perot cavity. A tetrahedral configuration of the four mirrors is found to minimize the consequences of the mirrors' motion and misalignment by reducing the instability parameter by at least 2 orders of magnitude.

PMID:
20011005
[PubMed]
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