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Opt Express. 2010 May 24;18(11):11264-9. doi: 10.1364/OE.18.011264.

Free spectral range measurement of a fiberized Fabry-Perot etalon with sub-Hz accuracy.

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  • 1CREOL, The College of Optics and Photonics, University of Central Florida, 4000 Central Florida Blvd., Orlando, FL 32816, USA.

Abstract

In this work a narrow linewidth (1 kHz) laser source is used to measure the free spectral range of a fiberized Fabry-Perot etalon with sub-Hz accuracy (10(-8)). A previously demonstrated technique based on the Pound-Drever-Hall error signal is improved in accuracy by the use of a narrow linewidth laser swept in frequency via an acousto-optic modulator, or single sideband generation. The sub-Hz (10(-8)) accuracy attained enables the characterization of both the long-term drift and the polarization dependence of the free spectral range of the fiberized etalon.

PMID:
20588986
[PubMed - indexed for MEDLINE]
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