Paper Title:
The Research of Polarization Feedback Control System Based on Double Mach-Zehnder Interferometer
  Abstract

Polarization induced signal fading always has an influence up on the visibility of the interference stripe and the accuracy of system location in the distributed optical fiber oil &gas pipeline leak detection system. Base on distributed sensor system polarization characteristic, this paper analyses the visibility of the interference stripe with the changing of polarization. Designed a feedback control system based on double Mach-Zehnder is used to eliminate the input light polarization fading. This system can effectively suppress the polarization fading in fiber optical sensor, making interferometer fringe visibility tends to 1 and the equilibrium state of input light polarization always closes to the best input sate of interferometer.

  Info
Periodical
Advanced Materials Research (Volumes 308-310)
Chapter
Green Design and Manufacturing
Edited by
Jian Gao
Pages
1751-1754
DOI
10.4028/www.scientific.net/AMR.308-310.1751
Citation
Y. T. Wang, R. R. Yuan, S. T. Wang, X. Gao, X. Li, "The Research of Polarization Feedback Control System Based on Double Mach-Zehnder Interferometer", Advanced Materials Research, Vols. 308-310, pp. 1751-1754, 2011
Online since
August 2011
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$32.00
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