Open AccessPolarimetric current sensor based on polarization division multiplexing detection
Author(s) -
Shanhui Xu,
Wei Li,
Fangfang Xing,
Yuqiao Wang
Publication year - 2014
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.011985
Subject(s) - optics , polarization (electrochemistry) , polarimetry , multiplexing , birefringence , polarization division multiplexing , materials science , physics , computer science , telecommunications , wavelength division multiplexing , wavelength , chemistry , scattering
A polarimetric current sensor based on polarization division multiplexing (PDM) detection is proposed. The novel sensor head with a heat insulation cavity only induces a small level of birefringence. Comparing with polarization diversity (PD) detection, the sensitivity of PDM detection is the double of PD detection. Moreover, PDM detection is more suitable in the presence of the phase modulation error. In addition, the noise and the shifting of the Verdet constant are proved to be the main influence factors of the sensor performance as the source power decline.