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This article is cited in 11 scientific papers (total in 11 papers)
Laser applications and other topics in quantum electronics
Photoacoustic methane gas analyser based on a 3.3-μm optical parametric oscillator
I. V. Sherstovab, D. B. Kolkerab a Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk
b Novosibirsk State University
Abstract:
We demonstrate a bench-scale prototype of a photoacoustic (PA) methane gas analyser that takes advantage of an optical parametric oscillator (OPO) based on a fan-out MgO : PPLN structure and resonant differential PA detector. The OPO emits in a repetitively pulsed mode (~1750 Hz) at an idler wavelength of ~3.3 μm with an average power of ~40 – 50 mW. Using the prototype laser PA gas analyser, we experimentally demonstrate the feasibility of measuring the background methane concentration in air (~2 – 3 ppm of CH4). The threshold sensitivity of the PA gas analyser (1σ) is determined to be ~49 ppb of CH4.
Keywords:
methane, photoacoustic gas analyser, optical parametric oscillator, resonant differential photoacoustic detector.
Received: 04.03.2020 Revised: 14.05.2020
Citation:
I. V. Sherstov, D. B. Kolker, “Photoacoustic methane gas analyser based on a 3.3-μm optical parametric oscillator”, Kvantovaya Elektronika, 50:11 (2020), 1063–1067 [Quantum Electron., 50:11 (2020), 1063–1067]
Linking options:
https://www.mathnet.ru/eng/qe17344 https://www.mathnet.ru/eng/qe/v50/i11/p1063
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Abstract page: | 191 | Full-text PDF : | 60 | References: | 24 | First page: | 19 |
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