标题：The degree of polarization-induced-fading for fiberoptic sensor based on 3×3 coupler
作者：Zhang, Yabin ;Sun, Xintong ;Zhang, Chao
作者机构：[Zhang, Yabin ;Sun, Xintong ;Zhang, Chao ] College of Information and Communication Engineering, Harbin Engineering University, Harbin, China
会议名称：2011 Symposium on Photonics and Optoelectronics, SOPO 2011
会议日期：May 16, 2011 - May 18, 2011
来源：2011 Symposium on Photonics and Optoelectronics, SOPO 2011
摘要：The optical fiber sensors have been paid increasing attention and are widely used and researched in-depth. However, polarization fading phenomena always appear in the output of interferometric fiber-optic sensors. In this paper, we use polarization optics to study polarization-induced fading phenomena and calculate the degree of it in the sensor based on 3×3 coupler. The result shows that the minimum of output light intensity is 0. We must change the structure of the sensor or use eliminating polarization-induced-fading technique to get steady laser intensity signals. © 2011 IEEE.