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Title: CO₂ laser-grooved long period fiber grating temperature sensor system based on intensity modulation
Authors: Wang, Yiping
Wang, Dongning
Jin, Wei
Subjects: Cost effectiveness
Diffraction gratings
Optical fibers
Temperature distribution
Temperature measurement
Issue Date: 1-Nov-2006
Publisher: Optical Society of America
Source: Applied optics, 1 Nov. 2006, v. 45, no. 31, p. 7966-7970.
Abstract: A long period fiber grating (LPFG) temperature sensor system based on intensity modulation is developed. The LPFG employed is fabricated by the use of a focused CO₂ laser beam to carve periodic grooves on the fiber. The temperature measurement resolution of up to 0.1°C has been obtained within the temperature range between 20°C and 100°C. The system uses a simple intensity measurement method and exhibits the advantages of convenient intensity measurement, double temperature sensitivity, high resolution, simple configuration, and low cost.
Rights: © 2006 Optical Society of America. This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Type: Journal/Magazine Article
DOI: 10.1364/AO.45.007966
ISSN: 0003-6935
Appears in Collections:EE Journal/Magazine Articles

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