Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/29995
Title: Optically heated long-period grating as temperature-insensitive fiber-optic refractive-index sensor
Authors: Zhang, Y
Gao, S
Zhang, AP 
Keywords: fiber-optic sensor
long-period grating (LPG)
Optical heating
refractive-index sensor
Issue Date: 2012
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE photonics journal, 2012, v. 4, no. 6, 6387666, p. 2340-2345 How to cite?
Journal: IEEE photonics journal 
Abstract: A temperature-insensitive fiber-optic refractive-index sensor based on optically heated long-period grating (LPG) is presented. The LPG is manufactured in a short section of cobalt-doped optical fiber (COF), which can be thermally stabilized through a pump light. Two fiber Bragg gratings (FBGs) are manufactured in COF and single-mode fiber (SMF), respectively, to monitor the local sensor and surrounding medium temperature. Experimental results demonstrate that this fiber-grating-based miniature refractive-index sensor can efficiently eliminate temperature cross-sensitivity in the temperature range of 5 ∼ 60°C.
URI: http://hdl.handle.net/10397/29995
EISSN: 1943-0655
DOI: 10.1109/JPHOT.2012.2232907
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