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Proceedings Paper

The characteristics of grating structure in magnetic field measurements based on polarization properties of fiber gratings
Author(s): Yang Su; Hui Peng; Kui Feng; Yu-quan Li
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Paper Abstract

In this paper the characteristics of grating structure in magnetic field measurements based on differential group delay of fiber gratings are analyzed. Theoretical simulations are realized using the coupled-mode theory and transfer matrix method. The effects of grating parameters of uniform Bragg grating on measurement range and sensitivity are analyzed. The impacts of chirped, phase-shifted and apodized gratings on DGD peak values are also monitored. FBG transmitted spectrums and DGD spectrums are recorded by means of an optical vector analyzer (OVA). Both the simulations and experiments demonstrate that the phase-shifted gratings can obviously improve the sensitivity.

Paper Details

Date Published: 25 November 2009
PDF: 7 pages
Proc. SPIE 7634, Optical Sensors and Biophotonics, 76340Y (25 November 2009); doi: 10.1117/12.851005
Show Author Affiliations
Yang Su, The PLA Univ. of Science and Technology (China)
Hui Peng, The PLA Univ. of Science and Technology (China)
Kui Feng, The PLA Univ. of Science and Technology (China)
Yu-quan Li, The PLA Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 7634:
Optical Sensors and Biophotonics
Xingde Li; Qingming Luo; Vasilis Ntziachristos; Yoshiaki Yasuno, Editor(s)

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