Photonic Sensors, Volume. 12, Issue 4, 220418(2022)
Design of an All-Fiber Fabry-Perot Sensor for Strain Measurement in Radiative Environment
A length-matched micro Fabry-Perot (FP) interferometer is proposed for strain measurement under irradiation environment. Theoretical simulation shows that a well length-matched FP sensor can achieve a very low drift of the cavity length and strain sensitivity in irradiation environment. In experiment, such an FP cavity is realized by laser micromachining. It shows a low cavity length drift of -0.037 μm and a strain sensitivity deviation of 0.52%, respectively, under gamma irradiation. Meanwhile, the intensity of interference fringes is also stable. As a result, such a length-matched FP cavity is a very promising candidate for strain sensing in radiative environments.
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Tingting YANG, Zengling RAN, Xiu HE, Lupeng GAN, Zhengxi HE, Jialiang ZHU, Peng HE, Zhuoyue LI, and Dong SUN. Design of an All-Fiber Fabry-Perot Sensor for Strain Measurement in Radiative Environment[J]. Photonic Sensors, 2022, 12(4): 220418
Category: Regular
Received: Sep. 21, 2021
Accepted: Sep. 29, 2021
Published Online: Mar. 11, 2023
The Author Email: RAN Zengling (ranzl@126.com)