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Kvantovaya Elektronika, 2001, Volume 31, Number 7, Pages 604–610 (Mi qe2012)  

Lasers. Active media

Analysis of the effect of regular and stochastic phase structures on the optical quality of the active medium flow in gas-dynamic lasers

V. O. Kovalevskii, V. V. Lobachev

Baltic State Technical University, St. Petersburg

Abstract: The detailed structure of the active medium in a gas-dynamic laser is analysed. The parameters of regular and stochastic phase field components are reconstructed from the results of processing the schlieren patterns of the flow field simulated by cold air. The second-order characteristics are obtained in the form of the spectral density of power and correlation distribution function of stochastic inhomogeneities; the integral scale of the phase perturbation is also determined. The standard deviations in perturbations of the regular and stochastic components are compared and a correct prediction of laser radiation parameters is made for several cases of the laser beam propagation through the phase-perturbing active medium.

Full text: PDF file (241 kB)

English version:
Quantum Electronics, 2001, 31:7, 604–610

Bibliographic databases:

PACS: 42.55.Lt, 42.60.Jf, 42.87.-d
Received: 11.10.2000
Revised: 03.04.2001

Citation: V. O. Kovalevskii, V. V. Lobachev, “Analysis of the effect of regular and stochastic phase structures on the optical quality of the active medium flow in gas-dynamic lasers”, Kvantovaya Elektronika, 31:7 (2001), 604–610 [Quantum Electron., 31:7 (2001), 604–610]

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