2 June 2014 Highly sensitive and selective optical fiber fluorescence sensor for lead ion detection in water using corrugated long period fiber grating
Author Affiliations +
Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91575C (2014) https://doi.org/10.1117/12.2059737
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain
Abstract
Optical fiber fluorescence sensors are widely used for chemical sensing. Intrinsic fluorescence sensors such as evanescent-wave sensors can be used for surface sensing while extrinsic sensors are used for bulk sensing. In intrinsic/ extrinsic fluorescence sensors, typically the side-wall/end-face of a single/multi-mode fiber is used. In this paper we introduce a novel intrinsic optical fiber fluorescence sensor which uses the side-wall of a large-core multi-mode fiber to collect the fluorescence from the bulk of samples. The method is to use a corrugated long period fiber grating, fabricated by a CO2 laser, to couple radiating modes to the core modes. Using the side-wall of a fiber helps to fabricate a multitarget or a distributed sensor. We also report the sensing of lead ions with concentration as low as few ppb in water using a novel fluorescence turn-on polymer as a chemical probe.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yasser Chiniforooshan, Yasser Chiniforooshan, Jianjun Ma, Jianjun Ma, Wojtek J. Bock, Wojtek J. Bock, Wenhui Hao, Wenhui Hao, Zhi Yuan Wang, Zhi Yuan Wang, } "Highly sensitive and selective optical fiber fluorescence sensor for lead ion detection in water using corrugated long period fiber grating", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91575C (2 June 2014); doi: 10.1117/12.2059737; https://doi.org/10.1117/12.2059737
PROCEEDINGS
4 PAGES


SHARE
Back to Top