Applied Physics B

, Volume 70, Issue 2, pp 163–168

Femtosecond noncollinear and collinear parametric generation and amplification in BBO crystal

  • V. Krylov
  • J. Gallus
  • U.P. Wild
  • A. Kalintsev
  • A. Rebane

DOI: 10.1007/s003400050026

Cite this article as:
Krylov, V., Gallus, J., Wild, U. et al. Appl Phys B (2000) 70: 163. doi:10.1007/s003400050026
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Abstract.

We perform comprehensive theoretical and experimental analysis of ultrafast noncollinear and collinear parametric generation and amplification in type-I phase-matched BBO crystal, pumped with 390 nm wavelength, 150-fs-duration pulses from a frequency-doubled regenerative-amplified Ti:sapphire laser. We investigate conditions for group-velocity-matched generation and amplification, seeded with white-light continuum pulses by considering mean propagation velocity of pump and parametric pulses. We show that under certain conditions, effective matching can be achieved for noncollinear geometry with a 390-nm pump. We report detailed energy, spectral, and temporal measurement of the parametric processes in BBO and show that our effective matching conditions agree with experimentally observed angular and spectral properties of the parametric gain. The maximum tuning range for noncollinear process was from 460 nm to 2.56 μm, with the highest conversion efficiency of up to 20%. For collinear geometry, no effective matching of average group velocity was found. Because of this, the maximum conversion efficiency with UV pump in single-pass OPA is limited to 1.5%.

PACS: 42.65.Yj; 42.65.Re; 42.79.Nv 

Copyright information

© Springer-Verlag 2000

Authors and Affiliations

  • V. Krylov
    • 1
  • J. Gallus
    • 1
  • U.P. Wild
    • 1
  • A. Kalintsev
    • 2
  • A. Rebane
    • 3
  1. 1.Physical Chemistry Laboratory, Swiss Federal Institute of Technology, CH-8092 Zurich, Switzerland (Fax: +41-1/632-1021, E-mail: krylov@phys.chem.ethz.ch)CH
  2. 2.S.I. Vavilov State Optical Institute, 199034 St. Petersburg, Russia (Fax: +7-812/393-1598, E-mail: agkalin@comset.spb.ru)RU
  3. 3.Department of Physics, Montana State University, Bozeman, MT 59717, USA (Fax: +1-406/994-4452, E-mail: rebane@physics.montana.edu)US

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