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Title: Highly sensitive long-period fiber-grating strain sensor with low temperature sensitivity
Authors: Wang, Yiping
Xiao, Limin
Wang, Dongning
Jin, Wei
Subjects: Diffraction gratings
Laser beams
Optical fibers
Issue Date: 1-Dec-2006
Publisher: Optical Society of America
Source: Optics letters, 1 Dec. 2006, v. 31, no. 23, p. 3414-3416.
Abstract: A long-period fiber-grating sensor with a high strain sensitivity of −7.6 pm/με and a low temperature sensitivity of 3.91 pm/°C is fabricated by use of focused CO₂ laser beam to carve periodic grooves on a large- mode-area photonic crystal fiber. Such a strain sensor can effectively reduce the cross-sensitivity between strain and temperature, and the temperature-induced strain error obtained is only 0.5 με/°C without using temperature compensation.
Rights: © 2006 Optical Society of America. This paper was published in Optics Letters 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/OL.31.003414
ISSN: 0146-9592
Appears in Collections:EE Journal/Magazine Articles

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