Open AccessHigh-resolution distributed polarization crosstalk measurement for polarization maintaining fiber with considerable dispersion
Author(s) -
Zhangjun Yu,
Jun Yang,
Yonggui Yuan,
Hanyang Li,
Changbo Hou,
Chengcheng Hou,
Haoliang Zhang,
Shuaifei Tian,
Xu Lu,
Xiaojun Zhang,
Fuqiang Jiang,
Zheng Zhu,
Jianzhong Zhang,
Yu Zhang,
Zhihai Liu
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.029712
Subject(s) - polarization mode dispersion , birefringence , optics , polarization (electrochemistry) , materials science , modal dispersion , polarization rotator , dispersion (optics) , physics , optical fiber , dispersion shifted fiber , fiber optic sensor , chemistry
We present a high-resolution polarization crosstalk measurement method for polarization maintaining fiber (PMF) with considerable dispersion. The birefringence dispersion of the PMF severely degrades the spatial resolution of the distributed polarization crosstalk measurement. Conventional dispersion compensation methods are effective for modest birefringence dispersion coefficients (for instance, of 0.0014 ps/nm/km). We present an iterative matched filter (IMF) method to cope with the case of considerable birefringence dispersion. We measured the distributed polarization crosstalk of a PMF coil with a birefringence dispersion coefficient of 0.235 ps/nm/km. By applying the IMF method, we obtained a spatial resolution of 0.09 m at any position of the PMF (a maximum of 12.36 m without dispersion compensation).