Focusing the quasicontinuous radiation of a waveguide CO2 laser in the near-surface atmosphere under wind refraction conditions

Vasiltsov, V.V., Egorov, E.N., Lebedev, F.V., Soloviev, A.V., Panchenko, V.Y., Shlenov, S.A., Kandidov, V.P.

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For Russian citation (Opticheskii Zhurnal):

Васильцов В.В., Егоров Э.Н., Лебедев Ф.В., Соловьев А.В., Панченко В.Я., Шленов С.А., Кандидов В.П. Фокусировка квазинепрерывного излучения волноводного CO2-лазера в приземной атмосфере в условиях ветровой рефракции // Оптический журнал. 2018. Т. 85. № 12. С. 24–29. http://doi.org/10.17586/1023-5086-2018-85-12-24-29

Vasiltsov V.V., Egorov E.N., Lebedev F.V., Soloviev A.V., Panchenko V.Ya., Shlenov S.A., Kandidov V.P. Focusing the quasicontinuous radiation of a waveguide CO2 laser in the near-surface atmosphere under wind refraction conditions [in Russian] // Opticheskii Zhurnal. 2018. V. 85. № 12. P. 24–29. http://doi.org/10.17586/1023-5086-2018-85-12-24-29

For citation (Journal of Optical Technology):

V. V. Vasil’tsov, É. N. Egorov, F. V. Lebedev, A. V. Solov’ev, V. Ya. Panchenko, S. A. Shlenov, and V. P. Kandidov, "Focusing the quasicontinuous radiation of a waveguide CO₂ laser in the near-surface atmosphere under wind refraction conditions," Journal of Optical Technology. 85(12), 760-764 (2018). https://doi.org/10.1364/JOT.85.000760

Abstract:

In this study, a theoretical and experimental rationale is given for the possibility of constructing a mobile laser system for solving applied problems based on the waveguide CO₂ laser pumped by an alternating current discharge and developed at IPLIT RAS for solving a number of problems in the fields of thermal laser processing of materials and medicine. The propagation of the laser radiation of a waveguide CO₂-laser system of kilowatt power in the near-surface atmosphere is experimentally and theoretically investigated. For a 160-m-long path, the laser beam energy transfer to an aperture of a given size under wind refraction conditions is considered. It has been established that for the system under consideration the effects of wind refraction can be significant only for wind speeds not exceeding 1 m/s. Under wind refraction conditions, increasing the power of the waveguide CO₂-laser system up to 10 kW does not result in any significant increase in the intensity of laser radiation or its power in a given aperture in the focusing plane at a distance of 160 m. These results can serve as a basis for creating a mobile kilowatt-power laser system.

Keywords:

waveguide CO2 laser, wind refraction, IR radiation, thermal self-action

OCIS codes: 140.0140, 010.1330

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