A low cost design to eliminate polarization induced phase shift for dual Mach-Zehnder fiber interferometer

  • Rui Li
  • , Sheng Liang*
  • , Qianzhe Liu
  • , Wen Xiao
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In dual Mach-Zehnder interferometer (DMZI) system, polarization induced phase shift (PIPS) leads to a big location error. Traditional approaches adopt polarization controller (PC) to eliminate PIPS by controlling polarization state (PS) of light source. Through establishing the influence model of input light PS and equivalent polarization parameters of sensing cable on interference signals, an approach using a simplified polarization controller (PC) to obtain high location accuracy is proposed. The simplified PC is composed of a polarizer and a fiber-fused half-wave plate and can provide a linearly polarized light with azimuth angle controlled. Simulation and experiment indicate that the proposed method and PC design not only has capability of eliminating PIPS, but also has the benefits of low cost and easy control.

Original languageEnglish
Title of host publicationInternational Symposium on Photonics and Optoelectronics, SOPO 2015
EditorsZhiping Zhou
PublisherSPIE
ISBN (Electronic)9781628418699
DOIs
StatePublished - 2015
EventInternational Symposium on Photonics and Optoelectronics, SOPO 2015 - Shanghai, China
Duration: 22 Aug 201524 Aug 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9656
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceInternational Symposium on Photonics and Optoelectronics, SOPO 2015
Country/TerritoryChina
CityShanghai
Period22/08/1524/08/15

Keywords

  • Distributed sensor
  • dual Mach-Zehnder interferometer
  • polarization control
  • polarization induced phase shift

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