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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 15 — May. 20, 2008
  • pp: 2835–2839

Pressure sensor realized with polarization-maintaining photonic crystal fiber-based Sagnac interferometer

H. Y. Fu, H. Y. Tam, Li-Yang Shao, Xinyong Dong, P. K. A. Wai, C. Lu, and Sunil K. Khijwania  »View Author Affiliations


Applied Optics, Vol. 47, Issue 15, pp. 2835-2839 (2008)
http://dx.doi.org/10.1364/AO.47.002835


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Abstract

A novel intrinsic fiber optic pressure sensor realized with a polarization-maintaining photonic crystal fiber (PM-PCF) based Sagnac interferometer is proposed and demonstrated experimentally. A large wavelength–pressure coefficient of 3.42 nm / MPa was measured using a 58.4 cm long PM-PCF as the sensing element. Owing to the inherently low bending loss and thermal dependence of the PM-PCF, the proposed pressure sensor is very compact and exhibits low temperature sensitivity.

© 2008 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.2420) Fiber optics and optical communications : Fibers, polarization-maintaining
(060.5295) Fiber optics and optical communications : Photonic crystal fibers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: March 3, 2008
Manuscript Accepted: April 16, 2008
Published: May 14, 2008

Citation
H. Y. Fu, H. Y. Tam, Li-Yang Shao, Xinyong Dong, P. K. A. Wai, C. Lu, and Sunil K. Khijwania, "Pressure sensor realized with polarization-maintaining photonic crystal fiber-based Sagnac interferometer," Appl. Opt. 47, 2835-2839 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-15-2835

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