DocumentCode :
1335037
Title :
Double-Pass In-Line Fiber Taper Mach–Zehnder Interferometer Sensor
Author :
Li, Yi ; Chen, Liang ; Harris, Edouard ; Bao, Xiaoyi
Author_Institution :
Dept. of Phys., Univ. of Ottawa, Ottawa, ON, Canada
Volume :
22
Issue :
23
fYear :
2010
Firstpage :
1750
Lastpage :
1752
Abstract :
In this letter, a novel double-pass in-line fiber taper Mach-Zehnder interferometer (MZI) is proposed and demonstrated as a refractive index and temperature sensor. The double-pass configuration is achieved by connecting a reflecting mirror to one port of the MZI. The attenuation peaks of the double-pass MZI spectra have higher contrasts than the peaks of single-pass spectra. Using our recently proposed spectrum differential integration analyzing method, the double-pass MZI sensors´ sensitivities can be made nearly twice as large as those of the single-pass MZI.
Keywords :
Mach-Zehnder interferometers; fibre optic sensors; refractive index measurement; temperature sensors; Mach-Zehnder interferometer; double-pass configuration; double-pass in-line fiber taper sensor; refractive index sensor; spectrum differential integration; temperature sensor; Mirrors; Optical fiber sensors; Optical fibers; Optimized production technology; Sensitivity; Temperature sensors; Fiber-optic sensor; Mach–Zehnder interferometer (MZI); fiber tapers;
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2010.2080316
Filename :
5585709
Link To Document :
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