Damage behaviors of fiber Bragg grating sensor in fabrication

Liqun Tang; Dengfeng Sang; Jinming Chen; Bao Yang; Yiping Liu

doi:10.1117/12.839280

25 August 2009 Damage behaviors of fiber Bragg grating sensor in fabrication

Liqun Tang, Dengfeng Sang, Jinming Chen, Bao Yang, Yiping Liu

Proceedings Volume 7375, ICEM 2008: International Conference on Experimental Mechanics 2008; 737545 (2009) https://doi.org/10.1117/12.839280
Event: International Conference on Experimental Mechanics 2008 and Seventh Asian Conference on Experimental Mechanics, 2008, Nanjing, China

Abstract

It is has been noted that for fiber Bragg grating sensor (FBGS), the tensile strengths of fiber Bragg grating sensors (FBGSs) were decreased after the gratings were written, which may reduce the sensor's measurement range obviously. In this paper, we focused on the damage behaviours of FBGS after fabrication experimentally. Firstly, the tensile tests were carried to measure the tensile strengths of naked optical fiber, decoated optical fiber and optical fiber with Bragg gratings to learn deduction of the tensile strength of optical fiber in the cases respectively. Further, the microscope photography was used to observe the surfaces of optical fiber with or without exposure of excimer laser. The main conclusion is that the UV pulse is the main contribution to reduce the strength remarkably, and the mechanical decoating method also can induce the surface damage on the optical fiber.

Citation Download Citation

Liqun Tang, Dengfeng Sang, Jinming Chen, Bao Yang, and Yiping Liu "Damage behaviors of fiber Bragg grating sensor in fabrication", Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 737545 (25 August 2009); https://doi.org/10.1117/12.839280

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