Cavity ringdown refractive index sensor using photonic crystal fiber interferometer

A refractive index sensor is demonstrated by integrating a photonic crystal fiber (PCF) Mach–Zehnder interferometer (MZI) into a cavity ringdown loop for improved sensitivity. By splicing a short section of PCF between two single-mode fibers and collapsing air holes over a short region at two splici...

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Main Authors: Chan, Chi Chiu, Wong, Wei Chang, Zhou, Wenjun, Dong, Xinyong, Leong, Kam Chew
Other Authors: School of Chemical and Biomedical Engineering
Format: Article
Language:English
Published: 2013
Subjects:
Online Access:https://hdl.handle.net/10356/97863
http://hdl.handle.net/10220/12120
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-978632020-03-07T11:35:35Z Cavity ringdown refractive index sensor using photonic crystal fiber interferometer Chan, Chi Chiu Wong, Wei Chang Zhou, Wenjun Dong, Xinyong Leong, Kam Chew School of Chemical and Biomedical Engineering DRNTU::Engineering::Chemical engineering A refractive index sensor is demonstrated by integrating a photonic crystal fiber (PCF) Mach–Zehnder interferometer (MZI) into a cavity ringdown loop for improved sensitivity. By splicing a short section of PCF between two single-mode fibers and collapsing air holes over a short region at two splicing point, a MZI will be formed. This is due to the coupling between core and cladding modes in the collapsed region. Through determining the decay constants of cavity ringdown curve under varying external refractive index, a minimum detectable refractive index of 7.8 × 10−5 RIU can be achieved. 2013-07-24T08:15:50Z 2019-12-06T19:47:27Z 2013-07-24T08:15:50Z 2019-12-06T19:47:27Z 2011 2011 Journal Article Wong, W. C., Zhou, W., Chan, C. C., Dong, X., & Leong, K. C. (2012). Cavity ringdown refractive index sensor using photonic crystal fiber interferometer. Sensors and Actuators B: Chemical, 161(1), 108-113. 0925-4005 https://hdl.handle.net/10356/97863 http://hdl.handle.net/10220/12120 10.1016/j.snb.2011.09.056 en Sensors and actuators B: chemical © 2011 Elsevier B.V.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Chemical engineering
spellingShingle DRNTU::Engineering::Chemical engineering
Chan, Chi Chiu
Wong, Wei Chang
Zhou, Wenjun
Dong, Xinyong
Leong, Kam Chew
Cavity ringdown refractive index sensor using photonic crystal fiber interferometer
description A refractive index sensor is demonstrated by integrating a photonic crystal fiber (PCF) Mach–Zehnder interferometer (MZI) into a cavity ringdown loop for improved sensitivity. By splicing a short section of PCF between two single-mode fibers and collapsing air holes over a short region at two splicing point, a MZI will be formed. This is due to the coupling between core and cladding modes in the collapsed region. Through determining the decay constants of cavity ringdown curve under varying external refractive index, a minimum detectable refractive index of 7.8 × 10−5 RIU can be achieved.
author2 School of Chemical and Biomedical Engineering
author_facet School of Chemical and Biomedical Engineering
Chan, Chi Chiu
Wong, Wei Chang
Zhou, Wenjun
Dong, Xinyong
Leong, Kam Chew
format Article
author Chan, Chi Chiu
Wong, Wei Chang
Zhou, Wenjun
Dong, Xinyong
Leong, Kam Chew
author_sort Chan, Chi Chiu
title Cavity ringdown refractive index sensor using photonic crystal fiber interferometer
title_short Cavity ringdown refractive index sensor using photonic crystal fiber interferometer
title_full Cavity ringdown refractive index sensor using photonic crystal fiber interferometer
title_fullStr Cavity ringdown refractive index sensor using photonic crystal fiber interferometer
title_full_unstemmed Cavity ringdown refractive index sensor using photonic crystal fiber interferometer
title_sort cavity ringdown refractive index sensor using photonic crystal fiber interferometer
publishDate 2013
url https://hdl.handle.net/10356/97863
http://hdl.handle.net/10220/12120
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