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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 13 — May. 1, 2008
  • pp: 2520–2523

Curvature sensor using a highly birefringent photonic crystal fiber with two asymmetric hole regions in a Sagnac interferometer

Orlando Frazão, José M. Baptista, José L. Santos, and Philippe Roy  »View Author Affiliations


Applied Optics, Vol. 47, Issue 13, pp. 2520-2523 (2008)
http://dx.doi.org/10.1364/AO.47.002520


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Abstract

A curvature sensor based on a highly birefringent (Hi-Bi) photonic crystal fiber inserted into a Sagnac interferometer is demonstrated. For this purpose, a novel Hi-Bi photonic crystal fiber was designed and fabricated. Half of the microstructured region of the photonic crystal fiber was composed by large diameter holes, while the other half contained small diameter holes. Because of this geometry, the fiber core was shifted from the center and high birefringence appears in the optical fiber. Curvature was applied for three different fiber directions for a range of 0.6 5 m 1 . Temperature and longitudinal strain was also characterized for constant curvature. The configuration showed insensitivity to these two physical parameters.

© 2008 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.4005) Fiber optics and optical communications : Microstructured fibers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: January 22, 2008
Revised Manuscript: March 29, 2008
Manuscript Accepted: March 30, 2008
Published: April 30, 2008

Citation
Orlando Frazão, José M. Baptista, José L. Santos, and Philippe Roy, "Curvature sensor using a highly birefringent photonic crystal fiber with two asymmetric hole regions in a Sagnac interferometer," Appl. Opt. 47, 2520-2523 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-13-2520

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