Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/13914
Title: High-sensitivity salinity sensor realized with photonic crystal fiber Sagnac interferometer
Authors: Wu, C
Fu, HY
Au, HY
Guan, BO
Tam, HY 
Keywords: Fiber design
Photonic crystal fibers
Pressure sensor
Side-hole fibers
Issue Date: 2011
Publisher: SPIE-International Society for Optical Engineering
Source: Proceedings of SPIE : the International Society for Optical Engineering, 2011, v. 7753, 77531B How to cite?
Journal: Proceedings of SPIE : the International Society for Optical Engineering 
Abstract: We present a highly sensitive salinity sensor realized with a polyimide-coated polarization-maintaining photonic crystal fiber (PM-PCF) based on a Sagnac interferometer configuration. The achieved salinity sensitivity is as high as 0.616 nm/M which is 37 times more sensitive than that of previous reported polyimide-coated fiber grating sensor. It has a low temperature sensitivity of -0.0122 pm/°. The performance of the sensor in aqueous solution of NaCl with concentrations up to 5.12 mol/L has been experimentally investigated. The proposed fiber optic salinity sensor is a promising candidate for salinity measurement.
Description: 21st International Conference on Optical Fiber Sensors, Ottawa, ON, 15-19 May 2011
URI: http://hdl.handle.net/10397/13914
ISBN: 9780819482464
ISSN: 0277-786X
EISSN: 1996-756X
DOI: 10.1117/12.886022
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