Design of an All-Fiber Fabry-Perot Sensor for Strain Measurement in Radiative Environment

Author:

Yang Tingting,Ran Zengling,He Xiu,Gan Lupeng,He Zhengxi,Zhu Jialiang,He Peng,Li Zhuoyue,Sun Dong

Abstract

AbstractA 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.

Publisher

Springer Science and Business Media LLC

Subject

Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials

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