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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 29, Iss. 5 — May. 1, 2012
  • pp: 1136–1140

Temperature-insensitive optical fiber two-dimensional micrometric displacement sensor based on an in-line Mach–Zehnder interferometer

Chuan Zhong, Changyu Shen, Yang You, Jinlei Chu, Xin Zou, Xinyong Dong, Yongxing Jin, and Jianfeng Wang  »View Author Affiliations


JOSA B, Vol. 29, Issue 5, pp. 1136-1140 (2012)
http://dx.doi.org/10.1364/JOSAB.29.001136


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Abstract

An in-line Mach–Zehnder-interferometer-based two-dimensional (2-D) micrometric displacement sensor was fabricated by inserting a polarization maintaining fiber (PMF) with a length of 1 cm between two conventional single-mode fibers (SMFs). The left end of the PMF was mismatch fusion spliced with an SMF. The right end of the PMF was connected to another SMF without fusion splicing. Two independent interference patterns corresponding to the two orthogonal polarization modes in the PMF were obtained. The visibility of the interference patterns depends on the 2-D micrometric displacement of the SMF along the right end of the PMF on the slow axis and fast axis directions. Experimental results show that the 2-D micrometric displacement sensor with sensitivity of 0.669 dB / μm on the slow axis direction and 0.301 dB / μm on the fast axis direction was obtained. With the use of the intensity demodulation method, the proposed sensor can overcome temperature and displacement cross-sensitivity effects.

© 2012 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

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: December 9, 2011
Revised Manuscript: February 20, 2012
Manuscript Accepted: February 23, 2012
Published: April 30, 2012

Citation
Chuan Zhong, Changyu Shen, Yang You, Jinlei Chu, Xin Zou, Xinyong Dong, Yongxing Jin, and Jianfeng Wang, "Temperature-insensitive optical fiber two-dimensional micrometric displacement sensor based on an in-line Mach–Zehnder interferometer," J. Opt. Soc. Am. B 29, 1136-1140 (2012)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-29-5-1136


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