The characteristics of grating structure in magnetic field measurements based on polarization properties of fiber gratings

Yang Su; Hui Peng; Kui Feng; Yu-quan Li

doi:10.1117/12.851005

25 November 2009 The characteristics of grating structure in magnetic field measurements based on polarization properties of fiber gratings

Yang Su, Hui Peng, Kui Feng, Yu-quan Li

Author Affiliations +

Proceedings Volume 7634, Optical Sensors and Biophotonics; 76340Y (2009) https://doi.org/10.1117/12.851005
Event: Asia Communications and Photonics, 2009, Shanghai, Shanghai , China

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.

Citation Download Citation

Yang Su, Hui Peng, Kui Feng, and Yu-quan Li "The characteristics of grating structure in magnetic field measurements based on polarization properties of fiber gratings", Proc. SPIE 7634, Optical Sensors and Biophotonics, 76340Y (25 November 2009); https://doi.org/10.1117/12.851005

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