Abstract

The intensity and position of the coupling points in high birefringence (Hi-Bi) fibers can be detected effectively using distributed polarization coupling (DPC) detection. The detection sensitivity can decrease due to mechanical vibration disturbance and environment noise. Thus, a method based on empirical mode decomposition is proposed to detect weak mode coupling points. The simulation and experimental results illustrate that the proposed method can suppress the noise effectively and improve sensitivity significantly. The method can identify coupling points as weak as -60 dB embedded in noise automatically and effectively. The algorithm is applicable for DPC, and the experimental sensitivity is improved by 10 dB.

© 2012 Chinese Optics Letters

Measurement accuracy improvement with PZT scanning for detection of DPC in Hi-Bi fibers

Wencai Jing, Yimo Zhang, Ge Zhou, Feng Tang, and Haifeng Li
Opt. Express 10(15) 685-690 (2002)

Twisted hi-bi fiber distributed-feedback lasers with controllable output state of polarization

Michalis N. Zervas, Richard Wilmshurst, and Louise M. B. Walker
Opt. Lett. 38(9) 1533-1535 (2013)

Measurement of spatial distribution of mode coupling in birefringent polarization-maintaining fiber with new detection scheme

K. Takada, J. Noda, and K. Okamoto
Opt. Lett. 11(10) 680-682 (1986)

Rotation angle optimization of the polarization eigenmodes for detection of weak mode coupling in birefringent waveguides

Wencai Jing, Yimo Zhang, Ge Zhou, Hongxia Zhang, Zhaohui Li, and Xiaoming Man
Opt. Express 10(18) 972-977 (2002)

Dynamic range beyond 100 dB for polarization mode coupling measurement based on white light interferometer

Chuang Li, Jun Yang, Zhangjun Yu, Yonggui Yuan, Bing Wu, Feng Peng, Jianzhong Zhang, Ai Zhou, Yu Zhang, Zhihai Liu, and Libo Yuan
Opt. Express 24(15) 16247-16257 (2016)