Study on the demodulation technique of fiber grating sensor arrays based on a tunable pulsed laser

Bo Dong; Qida Zhao; Shiya He; Shuyang Hu; Tuan Guo; Lifang Xue

doi:10.1117/12.726616

5 March 2007 Study on the demodulation technique of fiber grating sensor arrays based on a tunable pulsed laser

Bo Dong, Qida Zhao, Shiya He, Shuyang Hu, Tuan Guo, Lifang Xue

Proceedings Volume 6595, Fundamental Problems of Optoelectronics and Microelectronics III; 65953O (2007) https://doi.org/10.1117/12.726616
Event: Fundamental Problems of Optoelectronics and Microelectronics III, 2006, Harbin, China

Abstract

Time-division-multiplexing(TDM) demodulation technique of Fiber Bragg Grating(FBG) sensor arrays based on a tunable pulsed laser is studied. A tunable fiber laser based on a matched FBG is applied, and the wavelengths of the sensing FBGs are obtained by determining the maximum voltages by using a photodiode. The advantages of this scheme include simple structure, high signal-to-noise ratio, and the sensing signals are obtained by determining the maximum voltages.

Citation Download Citation

Bo Dong, Qida Zhao, Shiya He, Shuyang Hu, Tuan Guo, and Lifang Xue "Study on the demodulation technique of fiber grating sensor arrays based on a tunable pulsed laser", Proc. SPIE 6595, Fundamental Problems of Optoelectronics and Microelectronics III, 65953O (5 March 2007); https://doi.org/10.1117/12.726616

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