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Kvantovaya Elektronika, 2022, Volume 52, Number 5, Pages 426–436 (Mi qe18038)  

This article is cited in 5 scientific papers (total in 5 papers)

Lasers

Two-level gas laser with transverse diode pumping

A. I. Parkhomenko, A.M. Shalagin

Institute of Automation and Electrometry, Siberian Branch of Russian Academy of Sciences, Novosibirsk
References:
Abstract: We theoretically study a new method for generating laser radiation by a two-level system without population inversion in the 'red' wing of its spectral line under resonant absorption of broadband radiation from pump laser diodes. A two-level system simulates the atoms of an active gas in an atmosphere of a high-pressure buffer gas. The effect results from the fact that in the 'red' wing of the spectral line, the probability of stimulated emission exceeds the probability of absorption if the homogeneous broadening due to the interaction of particles with the buffer gas significantly exceeds the natural one (at high pressures of the buffer gas). Analytical formulae are obtained that describe the operation of a two-level gas laser with transverse diode pumping. It is found that the longer the active medium, the higher the buffer gas pressure and pump radiation intensity, and the smaller the width of the pump radiation spectrum, the greater the efficiency of conversion of pump radiation into laser radiation. In a sufficiently long active medium (the length of the medium is 50 times its width), the conversion efficiency can reach 44% at a buffer gas pressure of 5 atm, a pump diode radiation intensity of 3 kW cm-2, and a half-width of its spectrum of 1 cm-1. A two-level gas laser with transverse diode pumping is capable of generating continuous optical radiation with a very high (up to 100 kW) power. The frequency of laser radiation can be tuned by several tens of cm-1.
Keywords: two-level system, inversionless radiation amplification, diode pumping, collisions, Einstein coefficients, spectral line wing.
Funding agency Grant number
Ministry of Science and Higher Education of the Russian Federation АААА-А21-121021800168-4
The study was carried out at the expense of subsidies for the financial support for fulfilling the State Task (Project No. АААА-А21-121021800168-4) at the Institute of Automation and Electrometry of the Siberian Branch of the Russian Academy of Sciences.
Received: 08.12.2021
Accepted: 08.12.2021
English version:
Quantum Electronics, 2022, Volume 52, Issue 5, Pages 426–436
DOI: https://doi.org/10.1070/QEL18038
Bibliographic databases:
Document Type: Article
Language: Russian


Citation: A. I. Parkhomenko, A.M. Shalagin, “Two-level gas laser with transverse diode pumping”, Kvantovaya Elektronika, 52:5 (2022), 426–436 [Quantum Electron., 52:5 (2022), 426–436]
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  • https://www.mathnet.ru/eng/qe18038
  • https://www.mathnet.ru/eng/qe/v52/i5/p426
  • This publication is cited in the following 5 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    Квантовая электроника Quantum Electronics
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    References:33
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