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Experimental investigation on chemical sensor based on a multimode fiber Bragg grating
Author(s) -
Sang Xinzhu,
Yu Chongxiu,
Yan Binbin,
Mayteevarunyoo T.,
Wang Kuiru,
Lu Naiguang
Publication year - 2006
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.21761
Subject(s) - fiber bragg grating , multi mode optical fiber , materials science , reflection (computer programming) , optics , wavelength , microwave , grating , chemical sensor , fiber optic sensor , optoelectronics , fiber , optical fiber , chemistry , physics , engineering , telecommunications , computer science , electrode , composite material , programming language
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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