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PubMed · 15561617

Tunable single-frequency diode laser at wavelength lambda = 1.645 microm for methane concentration measurements.

A V Gladyshev·M I Belovolov·S A Vasiliev·E M Dianov·O I Medvedkov·A I Nadezhdinskii·O V Ershov·A G Beresin·V P Duraev·E T Nedelin
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Abstract

This paper deals with the development of a novel single-frequency tunable diode laser with fiber-optic output for gas-analysis applications. The approach we propose is a convenient, simple and cheap solution for spectroscopy of single absorption lines of any gases having absorption bands in the optical fiber transparency window (0.7 microm/1.7 microm). The presence of fiber-optic output is an additional advantage for remote sensing applications. The laser operation is demonstrated as applied to R7 line of 2 nu(3) methane absorption band at lambda = 1.645 microm. The mode-hop-free tuning range of 35 GHz (1.2 cm(-1)) has been achieved.

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LasersMethaneSpectrum AnalysisJournal Article

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A V Gladyshev, M I Belovolov, S A Vasiliev, E M Dianov, O I Medvedkov, A I Nadezhdinskii, O V Ershov, A G Beresin, V P Duraev, E T Nedelin. 2004. Tunable single-frequency diode laser at wavelength lambda = 1.645 microm for methane concentration measurements.. https://doi.org/10.1016/j.saa.2003.12.055

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