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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 15 — Jul. 18, 2011
  • pp: 14093–14098

Infrared generation by filamentation in air of a spectrally shaped laser beam

P. Lassonde, F. Théberge, S. Payeur, M. Châteauneuf, J. Dubois, and J.-C. Kieffer  »View Author Affiliations

Optics Express, Vol. 19, Issue 15, pp. 14093-14098 (2011)

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We demonstrated the generation of infrared radiation by filamentation of a spectrally shaped femtosecond laser beam. The spectrum is divided in two distinctive parts using an acousto-optic programmable dispersive filter (AOPDF) as a pulse shaper, resulting in two pulses of different colors. One pulse is frequency doubled and the beams are then focused to produce an optical filament. Efficient infrared generation occurred in the filament zone through the four-wave mixing interaction. This in-line setup allowed perfect spatial overlap of the pulses, fine control of the relative delay and the remote control of the infrared spectral distribution through spectral shaping of the initial femtosecond laser beam via the AOPDF.

© 2011 OSA

OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing

ToC Category:
Nonlinear Optics

Original Manuscript: April 21, 2011
Revised Manuscript: June 23, 2011
Manuscript Accepted: June 30, 2011
Published: July 8, 2011

P. Lassonde, F. Théberge, S. Payeur, M. Châteauneuf, J. Dubois, and J.-C. Kieffer, "Infrared generation by filamentation in air of a spectrally shaped laser beam," Opt. Express 19, 14093-14098 (2011)

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