Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/5659
Title: Salinity sensor based on polyimide-coated photonic crystal fiber
Authors: Wu, C
Guan, BO
Lu, C 
Tam, HY 
Keywords: Coatings
Crystal whiskers
Fiber Bragg gratings
Fiber optic components
Fibers
Photonic crystal
Pressure effects
Salinity measurement
Sensors
Issue Date: 10-Oct-2011
Publisher: Optical Society of America
Source: Optics express, 10 Oct. 2011, v. 19, no. 21, p. 20003-20008 How to cite?
Journal: Optics express 
Abstract: We proposed and experimentally demonstrated a highly sensitive salinity sensor using a polyimide-coated Hi-Bi photonic crystal fiber Sagnac interferometer based on the coating swelling induced radial pressure. This is the first time to exploit fiber coating induced pressure effect for salinity sensing. The achieved salinity sensitivity is 0.742 nm/(mol/L), which is 45 times more sensitive than that of a polyimide-coated fiber Bragg grating. A bare fiber Bragg grating is incorporated into the fiber loop for temperature compensation.
URI: http://hdl.handle.net/10397/5659
EISSN: 1094-4087
DOI: 10.1364/OE.19.020003
Rights: © 2011 Optical Society of America. This paper was published in Optics Express 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: http://www.opticsinfobase.org/abstract.cfm?URI=oe-19-21-20003. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
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