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Proceedings Paper

A new structure of fiber Bragg grating with increased sensitivity to pressure and decreased sensitivity to temperature
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Paper Abstract

In this article, we propose a simple method to increase the pressure sensitivity of a typical fiber Bragg grating (FBG) while decreasing the temperature sensitivity. This method uses a typical FBG, which is coated with a thick layer of polymer with two symmetric air channels. By this method the pressure sensitivity can be increased (e.g. 1.1×10-5 /MPa) while the temperature sensitivity is negligible (e.g. -0.174×10-8/oC) by proper selection of the geometrical parameters and material types of the sensor.

Paper Details

Date Published: 9 June 2006
PDF: 7 pages
Proc. SPIE 6162, International Conference on Lasers, Applications, and Technologies 2005: Laser Sensing, Imaging, and Information Technologies, 61620Q (9 June 2006); doi: 10.1117/12.675061
Show Author Affiliations
S. Toroghi, Shahid Beheshti Univ. (Iran)
Hamid Latifi, Shahid Beheshti Univ. (Iran)
M. Afshari, Shahid Beheshti Univ. (Iran)
Seyed. H. Aref, Shahid Beheshti Univ. (Iran)


Published in SPIE Proceedings Vol. 6162:
International Conference on Lasers, Applications, and Technologies 2005: Laser Sensing, Imaging, and Information Technologies
Tito Arecchi; Igor P. Gurov; Toyohiko Yatagai; Vladislav Ya. Panchenko; Vladimir S. Golubev, Editor(s)

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