Journal
OPTICAL FIBER TECHNOLOGY
Volume 19, Issue 6, Pages 741-759Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.yofte.2013.08.004
Keywords
Optical fiber gas sensors; Optical fiber sensors; Microstructured fibers; Hollow core fibers; Suspended core fibers; Photoacoustic spectroscopy
Funding
- National Natural Science Foundation of China (NSFC) [61290313]
- Hong Kong Special Administrative Region Government through GRF Grants [PolyU 5177/10E, PolyU 5096/09E]
- Hong Kong Special Administrative Region Government through ITC Grants [ITS/548/09, ITS/054/06]
- Hong Kong Polytechnic University [J-BB9K, 4ZZ-E1]
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This paper overviews recent development in gas detection with micro- and nano-engineered optical fibers, including hollow-core fibers, suspended-core fibers, tapered optical micro/nano fibers, and fiber-tip micro-cavities. Both direct absorption and photoacoustic spectroscopy based detection schemes are discussed. Emphasis is placed on post-processing stock optical fibers to achieve better system performance. Our recent demonstration of distributed methane detection with a similar to 75-m long of hollow-core photonic bandgap fiber is also reported. (C) 2013 The Authors. Published by Elsevier Inc. All rights reserved.
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