1 October 2004 Fiber Bragg grating temperature sensor for multiplexed measurement with high resolution
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Abstract
A novel fiber Bragg grating temperature sensor is proposed and experimentally demonstrated with a long-period grating as a linear response edge filter to convert wavelength into intensity-encoded information for interrogation. The sensor is embedded into an aluminum substrate with a larger coefficient of thermal expansion to enhance its temperature sensitivity. A large dynamic range of 110 °C and a high resolution of 0.02 °C are obtained in the experiments. The technique can be used for multiplexed measurements with one broadband source and one long-period grating, and therefore is low cost.
© (2004) Society of Photo-Optical Instrumentation Engineers (SPIE)
Yage Zhan, Yage Zhan, Haiwen Cai, Haiwen Cai, Ronghui Qu, Ronghui Qu, Shiqing Xiang, Shiqing Xiang, Zujie Fang, Zujie Fang, Xiangzhao Wang, Xiangzhao Wang, } "Fiber Bragg grating temperature sensor for multiplexed measurement with high resolution," Optical Engineering 43(10), (1 October 2004). https://doi.org/10.1117/1.1786938 . Submission:
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