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Laser performance of N g -cut flash-lamp pumped Nd:KGW at high repetition rates

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Abstract

A comparative study of the flash-lamp pumped laser performance of standard b-grown Nd:KGW and Nd:KGW grown for propagation along the optical axis Ng is presented. The results show that, in comparison with b-grown crystal, the Ng-grown Nd:KGW is very promising for use at high repetition flash-lamp pumping rates. With the same laser cavity configuration, the Ng-grown Nd:KGW can operate at an average flash-lamp input power of at least 1.4 kW, while the b-cut one ceases lasing at average flash-lamp input power of ∼0.5 kW. The reason for this is that the thermal lens induced in the Ng-oriented Nd:KGW rod under pump radiation is relatively weak, nearly spherical and positive, whereas the b-grown Nd:KGW rod acts as a quite weak positive lens for radiation with radial polarization, and as a much stronger negative lens for tangentially polarized radiation.

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Authors and Affiliations

  1. Institute for Optical Materials and Technologies BNTU, 65 Nezavisimosti Ave., Bldg. 17, Minsk, 220013, Belarus

    K.V. Yumashev, V.G. Savitski & N.V. Kuleshov

  2. Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, 3 Lavrentyev Ave., Novosibirsk, 630090, Russia

    A.A. Pavlyuk

  3. SOLAR Laser Systems, 4 Stebenev Lane, Minsk, 220024, Belarus

    D.D. Molotkov & A.L. Protasenya

Authors
  1. K.V. Yumashev
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  2. V.G. Savitski
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  3. N.V. Kuleshov
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  4. A.A. Pavlyuk
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  5. D.D. Molotkov
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  6. A.L. Protasenya
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Correspondence to K.V. Yumashev.

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PACS

42.60.Jf; 42.70.Hj

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Yumashev, K., Savitski, V., Kuleshov, N. et al. Laser performance of N g -cut flash-lamp pumped Nd:KGW at high repetition rates. Appl. Phys. B 89, 39–43 (2007). https://doi.org/10.1007/s00340-007-2732-5

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  • DOI: https://doi.org/10.1007/s00340-007-2732-5

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