Vol. 35, Issue 1, pp. 23-32

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  2. Optica Applicata Vol. 35, Issue 1, pp. 23-32 (2005)
Vol. 35 Issue 1 pp. 23-32

Near-IR diode laser-based sensor for remote sensing of methane leakage

Huang Wei, Gao Xiaoming, Li Xiaoyun, Li Weizheng, Huang Teng, Pei Shixin, Shao Jie, Yang Yong, Qu Jun, Zhang Weijun

Keywords

wavelength modulation spectroscopy, tunable diode laser spectroscopy, methane, gas sensor, diode laser

Abstract

A tunable diode laser-based sensor for remote sensing of methane (CH4) leakage at a wavelength of 1.65 mm was developed. The 1.65 mm distributed feedback (DFB) diode laser has a narrow line width and a wide tuning range. It was found that the sensor can detect a 10 cm3min–1 city-gas leak with a sensor output equivalent to the range-integrated concentration over 100 ppm·m.

Vol. 35
Issue 1
pp. 23-32

0.25 MB
OPTICA APPLICATA - a quarterly of the Wrocław University of Science and Technology, Faculty of Fundamental Problems of Technology