Quasi-distributed strain measurement for fiber Bragg grating array based on microwave photonic filter technique

Xiaozhong Tian; Yiping Wang; Jingzhan Shi; Dan Zhu

doi:10.1117/12.2661017

19 December 2022 Quasi-distributed strain measurement for fiber Bragg grating array based on microwave photonic filter technique

Xiaozhong Tian, Yiping Wang, Jingzhan Shi, Dan Zhu

Author Affiliations +

Proceedings Volume 12321, Advanced Sensor Systems and Applications XII; 123210N (2022) https://doi.org/10.1117/12.2661017
Event: SPIE/COS Photonics Asia, 2022, Online Only

Abstract

Based on the microwave photonics filter technique, an FBG array for quasi-distributed strain sensing has been proposed and demonstrated. The kernel of this work is that the strain on the FBG array changes the wavelength of these FBGs, which is converted to the variation of the time delay of the time response of the generated microwave photonic filter. Results show that, there is good measurement linearity between the time delay and applied strain. The proposed scheme enjoys fast interrogation speed and high resolution, hoping to provide a valuable reference in the field of temperature, index refractive and other parameters sensing.

Conference Presentation

Citation Download Citation

Xiaozhong Tian, Yiping Wang, Jingzhan Shi, and Dan Zhu "Quasi-distributed strain measurement for fiber Bragg grating array based on microwave photonic filter technique", Proc. SPIE 12321, Advanced Sensor Systems and Applications XII, 123210N (19 December 2022); https://doi.org/10.1117/12.2661017

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