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https://doi.org/10.18429/JACoW-RuPAC2021-TUPSB48
Title Optimization of the Geometric Characteristics of the Laser Beam in a Multi-Pass Scheme of Nonlinear Amplification of the Master Oscillator Illumination
Authors
  • Yu.A. Satov, A. Balabaev, I.A. Khrisanovpresenter, T. Kulevoy, A.A. Losev, A. Shumshurov, A.A. Vasilyev
    ITEP, Moscow, Russia
Abstract The paper presents the results of numerical simulation of the CO₂ MOPA laser scheme which is designed to generate powerful short radiation pulses in the ion source circuit. It is based on the nonlinear nature of the amplification of the master-oscillator pulse radiation, the front of which is formed by a nonlinear absorber. The paper considers the influence of the geometric parameters of the entrance beam in a four-pass amplification scheme. It is shown that for a fixed value of the small signal gain the maximum amplification effect is achieved with a certain formation of the spatial characteristics of the laser beam at the input to the amplifier. So some central uniform part of MO beam which has a Gaussian spatial profile is used in the telescopic amplifier. In this case, despite significant aperture losses, the maximum energy at the output of the amplifier is achieved with optimizing the beam diameter.
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Conference RuPAC2021
Series Russian Particle Accelerator Conference (27th)
Location Alushta, Crimea
Date 27 September-01 October 2021
Publisher JACoW Publishing, Geneva, Switzerland
Editorial Board Maksim V. Kuzin (BINP, Novosibirsk, Russia); Volker RW Schaa (GSI, Darmstadt, Germany)
Online ISBN 978-3-95450-240-0
Online ISSN 2673-5539
Received 24 September 2021
Revised 26 September 2021
Accepted 09 October 2021
Issued 19 October 2021
DOI doi:10.18429/JACoW-RuPAC2021-TUPSB48
Pages 327-329
Copyright
Creative Commons CC logoPublished by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.