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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: Henry van Driel
  • Vol. 27, Iss. 1 — Jan. 1, 2010
  • pp: 128–131

Generation of intense frequency-tunable few-cycle femtosecond pulses in hollow fiber

Fengjiao Zhong, Hongbing Jiang, and Qihuang Gong  »View Author Affiliations

JOSA B, Vol. 27, Issue 1, pp. 128-131 (2010)

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We theoretically show an approach to generate intense frequency-tunable few-cycle femtosecond pulses by molecular phase modulation combined with self-phase modulation. An intense pump pulse propagates through a gas-filled hollow fiber to excite alignment of the gas molecule, which induces temporal modulation of the refractive index. Then the spectrum of a time-delayed intense probe pulse is continuously tuned by the alignment and broadened simultaneously by self-phase modulation. The modification to the pump-induced alignment by the intense probe pulse is considered. Frequency-tunable intense few-cycle pulses in the visible and near-infrared spectrum range are obtained using initial 20 fs , 800 nm pulses.

© 2009 Optical Society of America

OCIS Codes
(140.3600) Lasers and laser optics : Lasers, tunable
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(320.7090) Ultrafast optics : Ultrafast lasers
(020.2649) Atomic and molecular physics : Strong field laser physics

ToC Category:
Lasers and Laser Optics

Original Manuscript: October 15, 2009
Manuscript Accepted: November 18, 2009
Published: December 24, 2009

Fengjiao Zhong, Hongbing Jiang, and Qihuang Gong, "Generation of intense frequency-tunable few-cycle femtosecond pulses in hollow fiber," J. Opt. Soc. Am. B 27, 128-131 (2010)

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