In situ multiplexing long-path fiber optic remote sensing system of methane with single laser source

Wang-bao Yin; Jian-ming Zhao; Chang-yong Li; Liantuan Xiao; Suotang Jia

doi:10.1117/12.481980

9 September 2002 In situ multiplexing long-path fiber optic remote sensing system of methane with single laser source

Wang-bao Yin, Jian-ming Zhao, Chang-yong Li, Liantuan Xiao, Suotang Jia

Proceedings Volume 4920, Advanced Sensor Systems and Applications; (2002) https://doi.org/10.1117/12.481980
Event: Photonics Asia, 2002, Shanghai, China

Abstract

A cost-effective multiplexing fiber-optic remote monitoring system, which laboratory prototype, has been demonstrated. This monitoring system will help personnel to measure a spatial distribution of methane or other gases in a wide area. And the fundamentals of the remote detection are based on Frequency-Modulation Spectroscopy (FMS) technique and harmonic detection technique. By utilizing fiber-optic splitter, a component of telecommunications industry, the remote monitoring system is feasible employing single laser source to get multicenter measurement in the near infrared region. The system described here performs sufficient sensibility, considerably increased reliability and marketability over the presently available system. It results in a large potential for applying extensively to various strategic points within the environment, such as solid-waste landfill sites and mines as well as urban and residential areas and otherwise.

Citation Download Citation

Wang-bao Yin, Jian-ming Zhao, Chang-yong Li, Liantuan Xiao, and Suotang Jia "In situ multiplexing long-path fiber optic remote sensing system of methane with single laser source", Proc. SPIE 4920, Advanced Sensor Systems and Applications, (9 September 2002); https://doi.org/10.1117/12.481980

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