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

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Mandridis D., ÖZDÜR İ. T., Bagnell M., Delfyett P. J.

OPTICS EXPRESS, vol.18, no.11, pp.11264-11269, 2010 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 18 Issue: 11
  • Publication Date: 2010
  • Doi Number: 10.1364/oe.18.011264
  • Journal Name: OPTICS EXPRESS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.11264-11269
  • Abdullah Gül University Affiliated: No


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. (C) 2010 Optical Society of America