Direction-judgable Fiber Displacement Interferometer for Vibration Measurement

WANG De-tian; LI Ze-ren; PENG Qi-xian

doi:10.3969/j.issn.1003-501x.2009.10.017

[1] Strand O T,Goosman D R,Martinez C,et al. Compact system for high-speed velocimetry using heterodyne techniques [J]. Review of Scientific Instruments(S0034-6748),2006,77(8)：083108.

[2] WENG Ji-dong,TAN Hua,WANG Xiang,et al. Optical-fiber interferometer for velocity measurements with picosecond resolution [J]. Applied Physics Letters(S0003-6951),2006,89(11)：111101.

[3] MA Zong-feng,ZHANG Chun-xi,HU Shu-ling,et al. Signal to noise ratio improvement in lidar system utilizing EDFA [J]. Infrared and Laser Engineering,2008,37(4)：656-659.

[4] HU Shao-lou. Laser Interferometry for Measuring Velocities [M]. Beijing：Defence Industry Press,2001：16-26.

[5] MAO Liang-ming,MENG Ai-dong,LI Chang-chun,et al. Study on Direction-Judgable Fiber Optic Interferometer with 3×3 Directional Coupler [J]. Journal of Nanjing University of Aeronautics &Astronautics,1998,30(6)：652-657.

[6] JIANG Yi,CHEN Shu-fen. Direct Demodulation for Signal from Fiber Grating Sensors by Interferometer Based on 3×3 Coupler [J]. Acta Optica Sinica,2004,24(11)：1487-1490.

[7] WENG Ji-dong,TAN Hua,JIA Bo,et al. Data processing of an all-fiber velocity interferometer system for any reflector [J]. Opto-Electronic Engineering,2005,32(1)：77-80.

[8] CHEN De-sheng,XIAO Ling,CUI Jie,et al. Analysis of 3×3 Coupler Demodulation Method for Optical Fiber Interferometer and Polarization Fading [J]. Journal of Optoelectronics · Laser,2007,18(5)：523-525