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Proceedings Paper

Damage behaviors of fiber Bragg grating sensor in fabrication
Author(s): Liqun Tang; Dengfeng Sang; Jinming Chen; Bao Yang; Yiping Liu
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Paper 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.

Paper Details

Date Published: 25 August 2009
PDF: 5 pages
Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 737545 (25 August 2009); doi: 10.1117/12.839280
Show Author Affiliations
Liqun Tang, South China Univ. of Technology (China)
Dengfeng Sang, South China Univ. of Technology (China)
Jinming Chen, South China Univ. of Technology (China)
Bao Yang, South China Univ. of Technology (China)
Yiping Liu, South China Univ. of Technology (China)


Published in SPIE Proceedings Vol. 7375:
ICEM 2008: International Conference on Experimental Mechanics 2008

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