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Optimization of the Spectral Composition of Radiation from a Compact CO2 Laser for an Optoacoustic Gas Analyzer for SF6

  • ACOUSTOOPTICAL AND RADIOOPTICAL METHODS FOR ENVIRONMENTAL STUDIES
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Abstract—

A simplified mathematical model and the results of experimental studies on the spectral composition of radiation of a compact waveguide CO2 laser with RF excitation for a optoacoustic laser gas analyzer are presented. The aim is to improve measurement accuracy by eliminating unwanted 10R branch lines from the laser spectrum. Laser radiation signatures are measured under various resonator and active medium parameters without the use of additional selection elements. It is demonstrated that optimal signatures can be achieved by selecting appropriate gas mixture pressure, transmittance coefficient of the output mirror, and optimal resonator length, which can be obtained by varying the nominal (base) length within a range of 2 mm. The effectiveness of optimizing the spectral composition of laser radiation is practically confirmed by statistical results for 64 lasers. This opens up new possibilities for improving the measurement accuracy of the laser optoacoustic SF6 gas analyzer and extending its application in various fields of science and technology.

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Funding

This work was supported by ongoing institutional funding. No additional grants to carry out or direct this particular research were obtained.

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Authors and Affiliations

  1. Special Technologies LLC, 630060, Novosibirsk, Russia

    K. G. Zenov, M. B. Miroshnichenko & A. I. Karapuzikov

  2. Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia

    A. I. Karapuzikov

  3. Novosibirsk State Technical University, 630073, Novosibirsk, Russia

    E. G. Nehorosheva

Authors
  1. K. G. Zenov
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  2. M. B. Miroshnichenko
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  3. A. I. Karapuzikov
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  4. E. G. Nehorosheva
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Correspondence to K. G. Zenov, M. B. Miroshnichenko, A. I. Karapuzikov or E. G. Nehorosheva.

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Zenov, K.G., Miroshnichenko, M.B., Karapuzikov, A.I. et al. Optimization of the Spectral Composition of Radiation from a Compact CO2 Laser for an Optoacoustic Gas Analyzer for SF6. Atmos Ocean Opt 36, 735–740 (2023). https://doi.org/10.1134/S1024856023060258

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  • DOI: https://doi.org/10.1134/S1024856023060258

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