Journal of Russian Laser Research

, Volume 32, Issue 1, pp 41–46 | Cite as

Nonlinear pulse compression by the second-harmonic generation in quasiphase and group-velocity matched samples

  • U. K. Sapaev
  • I. A. Kulagin
  • T. Usmanov
  • G. Assanto


We investigate numerically the second-harmonic generation from near infrared 100 fs pulses in periodically and aperiodically poled lithium niobate crystals, taking into account the group-velocity mismatch, the group-velocity dispersion, and self-action effects. For the first time, we show that a tenfold pulse compression can be obtained at both fundamental and second-harmonic frequencies. The mechanism of compression and the pertinent quality factors are discussed.


frequency doubling nonlinear pulse compression quasiphase matching lithium niobate cascading parametric effects 


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Copyright information

© Springer Science+Business Media, Inc. 2011

Authors and Affiliations

  • U. K. Sapaev
    • 1
  • I. A. Kulagin
    • 1
  • T. Usmanov
    • 1
  • G. Assanto
    • 2
  1. 1.Institute of ElectronicsAcademy of Sciences of UzbekistanTashkentUzbekistan
  2. 2.Nonlinear Optics and Optoelectronics LaboratoryUniversity “Roma Tre”RomeItaly

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