In situ gas sensing using a remotely detectable probe with replaceable insert

Title
In situ gas sensing using a remotely detectable probe with replaceable insert
Authors
임선도마경식정지호김길환이관일정제명이상배
Keywords
Fiber optics sensors; Photonic crystal fibers
Issue Date
2012-01
Publisher
Optics express
Citation
VOL 20, NO 2, 1727-1732
Abstract
We demonstrate a spectroscopic gas sensor using an optical fiber probe with a replaceable insert. The probe consists of a hollow-core photonic bandgap fiber (HC-PBGF) with a core diameter of 10.9 μm and a glass tube where a 2-μm hollow core fiber (HCF) with a gold coated end facet can be inserted. The HCF is designed to function as both a gate where gases can enter the HC-PBGF and a mirror reflecting the guided light back to the HC-PBGF. The opposite distal end of the probe is also designed to be able to regulate the gas pressure within the HC-PBGF for a high gas flow rate, while still transmitting the reflected light to the analysis instrument. The remote sensing probe, we believe, has much potential for detecting gases in hazardous environments.
URI
http://pubs.kist.re.kr/handle/201004/42693
ISSN
10944087
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KIST Publication > Article
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