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Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/355

Title: Experimental demonstration of a fiber-optic gas sensor network addressed by FMCW
Authors: Ho, Hoi-lut
Jin, Wei
Yu, H. B.
Chan, Peter K. C.
Chan, C. C.
Demokan, Suleyman
Subjects: Frequency-modulated continuous wave
Optical fiber gas sensors
Sensor multiplexing
Wavelength modulation spectroscopy
Issue Date: Nov-2000
Publisher: IEEE
Citation: IEEE photonics technology letters, Nov. 2000, v. 12, no. 11, p.1546-1548.
Abstract: We report on the use of frequency-modulated continuous-wave and wavelength modulation spectroscopy techniques for addressing a multipoint gas sensor network. A three-sensor network of ladder topology is experimentally demonstrated for the detection of acetylene gas. A minimum detectable concentration of 270 ppm/√Hz is obtained with 25-mm gas cells under atmospheric pressure which corresponds to a minimum detectable absorbance of 3.40 x 10[sup - 4]. The crosstalk between the sensors is below -22 dB.
Rights: © 2000 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
Type: Journal/Magazine Article
URI: http://hdl.handle.net/10397/355
ISSN: 10411135
Appears in Collections:EE Journal/Magazine Articles

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