摘要
A multi-channel synchronous demodulation system of a polarized low-coherence interferometer(PLCI) based on a matrix charge-coupled-device(CCD) is proposed and demonstrated. By using special designs, the system allows the signals from different channels to be received and demodulated synchronously. Multichannel air pressure experiments were implemented to verify the effectiveness of the proposed system. The experiment results showed that the Fabry–Perot(F–P) sensors could be demodulated synchronously with a high tolerance for light sources and sensors, which indicated that any sensor and light source that can be demodulated by PLCI were allowed to be employed, leading to a wide application in the field of multichannel synchronous measurement.
作者
王双
周杰
江俊峰
刘琨
韩群
段雅楠
王润东
刘铁根
Shuang Wang;Jie Zhou;Junfeng Jiang;Kun Liu;Qun Han;Yanan Duan;Rundong Wang;Tiegen Liu(School of Precision Instrument and Opto-electronics Engineering,Tianjin University,Tianjin 300072,China;Key Laboratory of Opto-electronics Information Technology,Ministry of Education,Tianjin 300072,China;Tianjin Optical Fiber Sensing Engineering Center,Institute of Optical Fiber Sensing of Tianjin University,Tianjin 300072,China)
基金
supported by the National Natural Science Foundation of China(Nos.61735011,61675152 and 61505139)
National Instrumentation Program of China(No.2013YQ030915)
China Postdoctoral Science Foundation(No.2016M590200)
