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Kvantovaya Elektronika, 2021, Volume 51, Number 11, Pages 992–999 (Mi qe17932)  

This article is cited in 8 scientific papers (total in 8 papers)

Control of laser radiation parameters

Investigation of spatial and temporal characteristics of turbulent-distorted laser radiation during its dynamic phase correction in an adaptive optical system

V. N. Belousova, V. A. Bogachevb, M. V. Volkovb, S. G. Garaninb, A. V. Kudryashovac, A. N. Nikitina, A. L. Rukosueva, F. A. Starikovb, Yu. V. Sheldakovaa, R. A. Shnyaginb

a Institute of Dynamics of Geospheres, Russian Academy of Sciences, Moscow
b Federal State Unitary Enterprise "Russian Federal Nuclear Center — All-Russian Research Institute of Experimental Physics", Sarov, Nizhny Novgorod region
c Moscow Polytechnic University
References:
Abstract: We report the results of the analysis of experiments on dynamic phase correction of laser radiation distorted by a turbulent airflow in an adaptive optical system (AOS) with a Shack–Hartmann wavefront sensor (WFS). A field-programmable gate array is used as the main AOS control element, which provides a closed loop AOS bandwidth of up to 2000 Hz. The WFS is used to estimate the characteristic bandwidth of the generated turbulence νturb. Changes in the spatial and temporal spectra of the laser radiation phase, as well as the quality of the beam during its dynamic phase correction at various AOS frequencies, are analysed. It is shown experimentally and by calculation that to ensure a high efficiency of the wavefront correction, the AOS frequency should be at least 20 times higher than νturb.
Keywords: adaptive optics, wavefront sensor, field-programmable gate array, atmospheric turbulence.
Funding agency Grant number
State Atomic Energy Corporation ROSATOM ЕОТП ЛТ-386
Received: 29.06.2021
Revised: 07.10.2021
English version:
Quantum Electronics, 2021, Volume 51, Issue 11, Pages 992–999
DOI: https://doi.org/10.1070/QEL17641
Bibliographic databases:
Document Type: Article
Language: Russian


Citation: V. N. Belousov, V. A. Bogachev, M. V. Volkov, S. G. Garanin, A. V. Kudryashov, A. N. Nikitin, A. L. Rukosuev, F. A. Starikov, Yu. V. Sheldakova, R. A. Shnyagin, “Investigation of spatial and temporal characteristics of turbulent-distorted laser radiation during its dynamic phase correction in an adaptive optical system”, Kvantovaya Elektronika, 51:11 (2021), 992–999 [Quantum Electron., 51:11 (2021), 992–999]
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  • https://www.mathnet.ru/eng/qe17932
  • https://www.mathnet.ru/eng/qe/v51/i11/p992
  • This publication is cited in the following 8 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
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