1 September 2004 Temperature-referenced high-sensitivity point-probe optical fiber chem-sensors based on cladding etched fiber Bragg gratings
Author Affiliations +
Abstract
Point-probe optical fiber chem-sensors have been implemented using cladding etched fiber Bragg gratings. The sensors possess refractive index sensing capability that can be utilized to measure chemical concentrations. The Bragg wavelength shift reaches 8 nm when the index of surrounding medium changes from 1.33 to 1.44, giving maximum sensitivity more than 10 times higher than that of previously reported devices. More importantly, the dual-grating configuration of the point-probe sensors offers a temperature reference function, permitting accurate measurement of refractive index encoded chemical concentrations.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kaiming Zhou, Xianfeng Chen, George Simpson, Donghui Zhao, Lin Zhang, Ian Bennion, "Temperature-referenced high-sensitivity point-probe optical fiber chem-sensors based on cladding etched fiber Bragg gratings", Proc. SPIE 5459, Optical Sensing, (1 September 2004); doi: 10.1117/12.545708; https://doi.org/10.1117/12.545708
PROCEEDINGS
6 PAGES


SHARE
Back to Top