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Proceedings Paper

Pressure sensitivity of dual resonant long-period gratings written in boron co-doped optical fiber
Author(s): Mateusz Smietana; Wojtek J. Bock; Predrag Mikulic; Jiahua Chen; Roland Wisniewski
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Paper Abstract

The paper presents a pressure sensor based on a long-period grating (LPG) written in boron co-doped photosensitive fiber and operating at the phase-matching turning point. It is shown that the pressure sensitivity can be tuned by varying the UV exposure time during the LPG fabrication process. The achieved pressure sensitivity can reach over 1 nm•bar-1, and is at least four times higher than for previously presented gratings working away from the double-resonance regime. In terms of intensity-based measurement, the sensitivity at the turning point can reach 0.212 dB•bar-1.

Paper Details

Date Published: 18 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77539E (18 May 2011); doi: 10.1117/12.885713
Show Author Affiliations
Mateusz Smietana, Univ. du Québec en Outaouais (Canada)
Warsaw Univ. of Technology (Poland)
Wojtek J. Bock, Univ. du Québec en Outaouais (Canada)
Predrag Mikulic, Univ. du Québec en Outaouais (Canada)
Jiahua Chen, Univ. du Québec en Outaouais (Canada)
Roland Wisniewski, Institute of Atomic Energy POLATOM (Poland)

Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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