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Title: Cavity ringdown refractive index sensor using photonic crystal fiber interferometer
Authors: Chan, Chi Chiu
Wong, Wei Chang
Zhou, Wenjun
Dong, Xinyong
Leong, Kam Chew
Keywords: DRNTU::Engineering::Chemical engineering
Issue Date: 2011
Source: 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.
Series/Report no.: Sensors and actuators B: chemical
Abstract: 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.
ISSN: 0925-4005
DOI: 10.1016/j.snb.2011.09.056
Rights: © 2011 Elsevier B.V.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SCBE Journal Articles

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