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Proceedings Paper

Recent progress on gas sensor based on quantum cascade lasers and hollow fiber waveguides
Author(s): Ningwu Liu; Juan Sun; Hao Deng; Junya Ding; Lei Zhang; Jingsong Li
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Paper Abstract

Mid-infrared laser spectroscopy provides an ideal platform for trace gas sensing applications. Despite this potential, early MIR sensing applications were limited due to the size of the involved optical components, e.g. light sources and sample cells. A potential solution to this demand is the integration of hollow fiber waveguide with novelty quantum cascade lasers.Recently QCLs had great improvements in power, efficiency and wavelength range, which made the miniaturized platforms for gas sensing maintaining or even enhancing the achievable sensitivity conceivable. So that the miniaturization of QCLs and HWGs can be evolved into a mini sensor, which may be tailored to a variety of real-time and in situ applications ranging from environmental monitoring to workplace safety surveillance. In this article, we introduce QCLs and HWGs, display the applications of HWG based on QCL gas sensing and discuss future strategies for hollow fiber coupled quantum cascade laser gas sensor technology.

Paper Details

Date Published: 10 February 2017
PDF: 5 pages
Proc. SPIE 10250, International Conference on Optical and Photonics Engineering (icOPEN 2016), 102501W (10 February 2017); doi: 10.1117/12.2266816
Show Author Affiliations
Ningwu Liu, Anhui Univ. (China)
Juan Sun, Anhui Univ. (China)
Hao Deng, Anhui Univ. (China)
Junya Ding, Anhui Univ. (China)
Lei Zhang, Anhui Univ. (China)
Jingsong Li, Anhui Univ. (China)

Published in SPIE Proceedings Vol. 10250:
International Conference on Optical and Photonics Engineering (icOPEN 2016)
Anand Krishna Asundi; Xiyan Huang; Yi Xie, Editor(s)

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