Liu Jia,Yu Jin-long,Guo Jing-zhong,Gao Chao,Wang Wen-rui,Yang En-ze.Distributed optical fiber vibration sensing system based on polarization detection[J].Optoelectronics Letters,2011,7(6):458-462 Distributed optical fiber vibration sensing system based on polarization detection Author Name Affiliation Liu Jia  School of Electronic & Information Engineering, Tianjin University；  Yu Jin-long  School of Electronic & Information Engineering, Tianjin University；  Guo Jing-zhong  School of Electronic & Information Engineering, Tianjin University；  Gao Chao  School of Electronic & Information Engineering, Tianjin University；  Wang Wen-rui  School of Electronic & Information Engineering, Tianjin University；  Yang En-ze  School of Electronic & Information Engineering, Tianjin University；  Abstract:       A novel distributed optical fiber vibration sensing system based on polarization detection is proposed and demonstrated. A Faraday rotator mirror is employed at the end of the system, which eliminates the slow polarization variation of signal light and only responses to rapid polarization change caused by external vibration interference. Based on the sensing signal characteristics, the location of polarization disturbance point can be detected accurately. Experiments on polarization controller s... Hits: 3836 Download times: 209 View Full Text    Download reader