2 June 2014 Dual-parameter monitoring based on fiber loop mirror assisted reflective long period fiber grating
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Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 915749 (2014) https://doi.org/10.1117/12.2058511
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain
Abstract
In this paper, a dual-parameter measurement scheme based on a fiber loop mirror (FLM) assisted reflective long period fiber grating (LPFG) is proposed and experimentally demonstrated. Due to the Sagnac fiber loop mirror, a reflective long period fiber grating was generated resulting in a compact sensing routing design. Moreover, the refractive index and temperature could be simultaneously determined through monitoring two dips’ wavelength shifts of the FLM assisted reflective LPFG. Experimental results show that the RI sensitivity of the sensor is from 34.48nm/RIU to 241.12nm/RIU in the RI range from 1.3467 to 1.4526, and the temperature sensitivity can reach 1.5274 nm / °C.
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Jianying Yuan, Jianying Yuan, Chun-Liu Zhao, Chun-Liu Zhao, GuiLan Feng, GuiLan Feng, Juan Kang, Juan Kang, Shangzhong Jin, Shangzhong Jin, } "Dual-parameter monitoring based on fiber loop mirror assisted reflective long period fiber grating", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 915749 (2 June 2014); doi: 10.1117/12.2058511; https://doi.org/10.1117/12.2058511
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