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Title: Inscription of polymer optical fiber Bragg grating at 962 nm and its potential in strain sensing
Authors: Zhang, Z
Zhang, C
Tao, X 
Wang, G
Peng, GD
Issue Date: 1-Nov-2010
Source: IEEE photonics technology letters, 1 Nov. 2010, v.22, no. 21, p. 1562-1564
Abstract: Fiber Bragg grating (FBG) with a 962-nm Bragg wavelength was fabricated in trans-4-stilbenemethanol doped poly(methyl methacrylate) polymer optical fibers (POFs) using a phase mask with 17% zeroth-order diffraction for the inscription wavelength of 325 nm. The effect of zeroth-order diffraction of the phase masks on FGB in POF was first examined by observing micrographs of the gratings. A linear relationship between the fiber axial strain and shift of the FBG was observed up to 6.5% tensile strain with a strain sensitivity of 0.916 pm /με. However, this shift was notably affected by the time-dependent stress relaxation in the fiber, especially when the FBG was subject to a relatively higher strain > 2%.
Keywords: Fiber Bragg grating (FBG)
Fiber grating fabrication
Measurement of strain
Polymer optical fiber (POF)
Publisher: Institute of Electrical and Electronics Engineers
Journal: IEEE photonics technology letters 
ISSN: 1041-1135
EISSN: 1941-0174
DOI: 10.1109/LPT.2010.2069090
Rights: © 2010 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
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