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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 3 — Jan. 20, 2014
  • pp: 469–474

Optical fiber Fabry–Perot interferometer cavity fabricated by femtosecond laser-induced water breakdown for refractive index sensing

Yi Liu and Shiliang Qu  »View Author Affiliations


Applied Optics, Vol. 53, Issue 3, pp. 469-474 (2014)
http://dx.doi.org/10.1364/AO.53.000469


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Abstract

The Fabry–Perot interferometer (FPI) cavity in a single-mode fiber with two open faces was fabricated by using the method of femtosecond laser-induced water breakdown. Then the FPI cavity was annealed by the arc discharge to greatly smooth its internal surface. The whole fabrication process features simple operation and high efficiency. The fabricated FPI cavity exhibits a perfect interferometer spectrum with reflection loss of only 3dB and fringe visibility of almost 30 dB. It can be used as a perfectly reliable liquid refractive index sensor, as it exhibits high sensitivity (1147.48nm/RIU), good linearity (99.93%), good repeatability, high actual measurement accuracy (1.29×104RIU), large measurement range, and good temperature insensitive characteristic.

© 2014 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
(230.4000) Optical devices : Microstructure fabrication
(320.7090) Ultrafast optics : Ultrafast lasers

ToC Category:
Diffraction and Gratings

History
Original Manuscript: October 24, 2013
Revised Manuscript: December 16, 2013
Manuscript Accepted: December 17, 2013
Published: January 17, 2014

Citation
Yi Liu and Shiliang Qu, "Optical fiber Fabry–Perot interferometer cavity fabricated by femtosecond laser-induced water breakdown for refractive index sensing," Appl. Opt. 53, 469-474 (2014)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-53-3-469

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