Theoretical simulation of bending sensitivity of fiber Bragg gratings in special structure fiber

Huimei He; Li Wang

doi:10.1117/12.869036

9 November 2010 Theoretical simulation of bending sensitivity of fiber Bragg gratings in special structure fiber

Huimei He, Li Wang

Proceedings Volume 7853, Advanced Sensor Systems and Applications IV; 78531V (2010) https://doi.org/10.1117/12.869036
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

The axial strain of bending four-core fiber Bragg gratings (4CF-FBG), bending side-polished FBG (D-FBG) and D-4CF-FBG is analyzed with mechanics of materials. Bending sensitivity characteristic of Bragg wavelength's shift is obtained. D-4CF-FBG's bending sensitivity is higher than that of 4CF-FBG and D-FBG, and D-4CF-FBG's bending sensitivity with respect to the different thickness of side-polished is several times to several decuple higher than D-FBG. The result was helpful for the design of high sensitivity fiber Bragg grating bending device or sensor system.

Citation Download Citation

Huimei He and Li Wang "Theoretical simulation of bending sensitivity of fiber Bragg gratings in special structure fiber", Proc. SPIE 7853, Advanced Sensor Systems and Applications IV, 78531V (9 November 2010); https://doi.org/10.1117/12.869036

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