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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 16 — Aug. 15, 2014
  • pp: 4751–4754

Effect and elimination of alignment error in an optical fiber current sensor

Shaoyi Xu, Wei Li, Yuqiao Wang, and Fangfang Xing  »View Author Affiliations


Optics Letters, Vol. 39, Issue 16, pp. 4751-4754 (2014)
http://dx.doi.org/10.1364/OL.39.004751


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Abstract

This Letter demonstrates the effect and elimination of alignment error in an optical fiber current sensor. An optical model is built to illustrate the effect of alignment error, which does not induce zero drift and has a large effect on output accuracy. The total alignment error and modulation angle of the polarization controller are defined as k and θ, respectively. Parameter t is equal to 2θ2k. An elimination method of the error k is proposed, which corrects the angle θ to keep parameter t at 90 deg. This method avoids the measurement of all splice angles separately. Its feasibility is shown by simulation results. In addition, the measurement method and conditions of parameter t are presented. The final t is about 90.24 deg. Furthermore, the effectiveness of the proposed elimination method is proven by a performance test.

© 2014 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(280.4788) Remote sensing and sensors : Optical sensing and sensors

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: June 9, 2014
Revised Manuscript: July 5, 2014
Manuscript Accepted: July 8, 2014
Published: August 7, 2014

Citation
Shaoyi Xu, Wei Li, Yuqiao Wang, and Fangfang Xing, "Effect and elimination of alignment error in an optical fiber current sensor," Opt. Lett. 39, 4751-4754 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-16-4751

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