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Kvantovaya Elektronika, 2014, Volume 44, Number 5, Pages 415–425 (Mi qe15918)  

This article is cited in 9 scientific papers (total in 9 papers)


Optimisation of wide-band parametric amplification stages of a femtosecond laser system with coherent combining of fields

S. N. Bagayev, V. I. Trunov*, E. V. Pestryakov, V. E. Leshchenko, S. A. Frolov, V. A. Vasil'ev

Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk

Abstract: For the first time the pulses with the energy of ~150 mJ and the spectrum corresponding to the transform-limited duration of ~20 fs amplified in three-stage parametric amplifiers have been coherently combined in a dual-channel femtosecond laser system. The efficiency of coherent combining of above 90% has been obtained at the residual relative time jitter of amplified pulses of 110 as. For the first time the modulation of spectrum was experimentally observed under the parametric amplification of a wideband femtosecond radiation in crystals placed in series. The model of parametric luminescence evolution was developed which allows one to calculate the whole range of the frequency-angular spectrum that, in addition to simulations of the contrast of amplified pulses, gives the possibility of optimising the amplifier efficiency. The results of experiments on measuring the contrast are presented and compared with the calculated data. Methods for enhancing the contrast in the created laser system are analysed. Possible schemes of multibeam pumping of the output cascade are considered for obtaining a petawatt power in the laser system based on cascades of a parametric amplifier in LBO crystals which is being developed at the Institute of Laser Physics of SB RAS.

Keywords: petawatt laser system, parametric amplification, coherent combining, multi-beam pumping, femtosecond pulses, contrast.
* Author to whom correspondence should be addressed

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English version:
Quantum Electronics, 2014, 44:5, 415–425

Bibliographic databases:

PACS: 42.55.Rz, 42.60.By, 42.60.Da, 42.60.Lh, 42.65.Yj
Received: 03.03.2014
Revised: 24.03.2014

Citation: S. N. Bagayev, V. I. Trunov, E. V. Pestryakov, V. E. Leshchenko, S. A. Frolov, V. A. Vasil'ev, “Optimisation of wide-band parametric amplification stages of a femtosecond laser system with coherent combining of fields”, Kvantovaya Elektronika, 44:5 (2014), 415–425 [Quantum Electron., 44:5 (2014), 415–425]

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    Citing articles on Google Scholar: Russian citations, English citations
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    This publication is cited in the following articles:
    1. V.E. Leshchenko, V.I. Trunov, S.A. Frolov, E.V. Pestryakov, V.A. Vasiliev, Laser Phys. Lett, 11:9 (2014), 095301  crossref  adsnasa  isi  elib  scopus
    2. Trunov V.I. Frolov S.A. Pestryakov E.V., 21St International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, Proceedings of Spie, 9680, ed. Matvienko G. Romanovskii O., Spie-Int Soc Optical Engineering, 2015, 96803N  crossref  isi  scopus
    3. Quantum Electron., 47:11 (2017), 986–991  mathnet  crossref  isi  elib
    4. S. A. Frolov, V. I. Trunov, Appl. Optics, 56:22 (2017), 6375–6380  crossref  isi  scopus
    5. S. A. Frolov, V. I. Trunov, International Conference on Atomic and Molecular Pulsed Lasers XIII, Proceedings of Spie, 10614, eds. V. Tarasenko, A. Kabanov, Spie-Int Soc Optical Engineering, 2018, UNSP 106142E  crossref  isi  scopus
    6. D. O. Shvydkoy, V. I. Trunov, Xiv International Conference on Pulsed Lasers and Laser Applications, Proceedings of Spie, 11322, eds. V. Tarasenko, A. Klimkin, M. Trigub, Spie-Int Soc Optical Engineering, 2019, UNSP 113220T  crossref  isi  scopus
    7. Quantum Electron., 50:12 (2020), 1126–1133  mathnet  crossref  isi  elib
    8. D. Shvydkoy, V. Trunov, Appl. Phys. B-Lasers Opt., 126:6 (2020), 116  crossref  isi  scopus
    9. Timofeev V I., Berendeev E.A., Annenkov V.V., Volchok E.P., Trunov I V., Phys. Plasmas, 28:1 (2021), 013103  crossref  isi  scopus
  • Квантовая электроника Quantum Electronics
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