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

Rui Li; Sheng Liang; Qianzhe Liu; Wen Xiao

doi:10.1117/12.2197578

22 August 2015 A low cost design to eliminate polarization induced phase shift for dual Mach-Zehnder fiber interferometer

Rui Li, Sheng Liang, Qianzhe Liu, Wen Xiao

Author Affiliations +

Proceedings Volume 9656, International Symposium on Photonics and Optoelectronics 2015; 965609 (2015) https://doi.org/10.1117/12.2197578
Event: International Symposium on Photonics and Optics, 2015, Shanghai, China

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.

Citation Download Citation

Rui Li, Sheng Liang, Qianzhe Liu, and Wen Xiao "A low cost design to eliminate polarization induced phase shift for dual Mach-Zehnder fiber interferometer", Proc. SPIE 9656, International Symposium on Photonics and Optoelectronics 2015, 965609 (22 August 2015); https://doi.org/10.1117/12.2197578

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