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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 36, Iss. 21 — Nov. 1, 2011
  • pp: 4191–4193

Fabry–Perot interferometers built by photonic crystal fiber pressurization during fusion splicing

Fernando. C. Favero, Geraud Bouwmans, Vittoria Finazzi, Joel Villatoro, and Valerio Pruneri  »View Author Affiliations

Optics Letters, Vol. 36, Issue 21, pp. 4191-4193 (2011)

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We report on a microscopic Fabry–Perot interferometer whose cavity is a bubble trapped inside an optical fiber. The microcavity is formed by pressuring a photonic crystal fiber (PCF) with large voids during fusion splicing with a conventional single-mode fiber. The technique allows achieving high repeatability and full control over the cavity size and shape. It was found that the size of the PCF voids contributes to control the cavity size independently of the pressure in the PCF. Our devices exhibit a record fringe contrast of 30 dB (visibility of 0.999) due to the ellipsoidal cavity whose surfaces compensate for the diffraction of the reflected beam. The strain sensitivity of the interferometers is higher when the cavities are ellipsoidal than when they are spherical.

© 2011 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(060.5295) Fiber optics and optical communications : Photonic crystal fibers

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: July 11, 2011
Revised Manuscript: September 12, 2011
Manuscript Accepted: September 28, 2011
Published: October 21, 2011

Fernando. C. Favero, Geraud Bouwmans, Vittoria Finazzi, Joel Villatoro, and Valerio Pruneri, "Fabry–Perot interferometers built by photonic crystal fiber pressurization during fusion splicing," Opt. Lett. 36, 4191-4193 (2011)

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