Optical fiber distributed acoustic sensing based on the coherent Rayleigh backscattering

摘要：

　　A distributed acoustic sensing (DAS) scheme is presented.Rayleigh backscattered light which contains acoustic signal induced phase changes along the sensing fiber is fed into a balance Michelson interferometer, the phase changes are demodulated by the Phase Generated Carrier technology.A piezoelectric simulation experiment of acoustic vibration is designed.The DAS system has realized 10m location resolution of the acoustic source, and the flat frequency response through the experiment.

关键词： distributed acoustic sensing Phase Generated Carrier interferometer frequency response

作者: Ying Shang Chen Wang Xiao-hui Liu Chang Wang Gangding Peng

作者单位: Shandong Key Laboratory of Optical Fiber Sensing Technologies, Laser Institute of Shandong Academy o Shandong Key Laboratory of Optical Fiber Sensing Technologies, Laser Institute of Shandong Academy o

会议类型: 国内会议

会议名称: 光纤和光电子传感器及其安全应用国际会议(OFSIS2015)

会议地点: 济南

会议语种:英文

页码: 251-255

在线出版日期: 2015-01-20（万方平台首次上网日期，不代表论文的发表时间）