Distributed dual-parameter optical fiber sensor based on cascaded microfiber Fabry-Parot interferometers

Yang Xiang; Yiyang Luo; Wei Zhang; Deming Liu; Qizhen Sun

doi:10.1117/12.2265574

23 April 2017 Distributed dual-parameter optical fiber sensor based on cascaded microfiber Fabry-Pérot interferometers

Yang Xiang, Yiyang Luo, Wei Zhang, Deming Liu, Qizhen Sun

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103234B (2017) https://doi.org/10.1117/12.2265574
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

We propose and demonstrate a distributed fiber sensor based on cascaded microfiber Fabry-Perot interferometers (MFPI) for simultaneous refractive index (SRI) and temperature measurement. By employing MFPI which is fabricated by taper-drawing the center of a uniform fiber Bragg grating (FBG) on standard fiber into a section of microfiber, dual parameters including SRI and temperature can be detected through demodulating the reflection spectrum of the MFPI. Further, wavelength-division-multiplexing (WDM) is applied to realize distributed dual-parameter fiber sensor by using cascaded MFPIs with different Bragg wavelengths. A prototype sensor system with 5 cascaded MFPIs is constructed to experimentally demonstrate the sensing performance.

Citation Download Citation

Yang Xiang, Yiyang Luo, Wei Zhang, Deming Liu, and Qizhen Sun "Distributed dual-parameter optical fiber sensor based on cascaded microfiber Fabry-Pérot interferometers", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103234B (23 April 2017); https://doi.org/10.1117/12.2265574

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