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Experimental investigation on chemical sensor based on a multimode fiber Bragg grating

✍ Scribed by Xinzhu Sang; Chongxiu Yu; Binbin Yan; T. Mayteevarunyoo; Kuiru Wang; Naiguang Lu

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
188 KB
Volume
48
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

A chemical sensor based on a Bragg grating in the multimode fiber has been demonstrated experimentally. Experimental results indicate that the reflection peak of high‐order mode P2 exhibits a much higher concentration sensitivity of the chemical solution than the reflection peak P1 of the high‐order mode. The sensor has been used to measure the concentrations of propylene glycol solutions and sugar solutions, which could detect 0.05% and 0.04% concentration change for them with the wavelength interrogation module of 1‐pm resolution. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 1739–1741, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21761

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