Search for: [Abstrakt = "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."]

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