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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 24, Iss. 4 — Apr. 1, 2007
  • pp: 985–989

Generation of 2.6 fs optical pulses using induced-phase modulation in a gas-filled hollow fiber

Eiichi Matsubara, Keisaku Yamane, Taro Sekikawa, and Mikio Yamashita  »View Author Affiliations


JOSA B, Vol. 24, Issue 4, pp. 985-989 (2007)
http://dx.doi.org/10.1364/JOSAB.24.000985


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Abstract

We report quasi-one-optical-cycle pulse compression of the ultrabroadband white-light continuum generated using both induced-phase modulation (IPM) and self-phase modulation (SPM) in a 3.0 atom Ar-gas-filled hollow fiber. Fundamental and second harmonic waves of amplified 30 fs Ti:sapphire laser pulses were irradiated into a 37 cm hollow fiber with an inner diameter of 140 μ m . When the two pulses were temporally overlapped in the hollow fiber, the white-light continuum with the wavelength range of 350 1050 nm was generated. The spectral phase of the white-light continuum was measured by a modified spectral interferometry for direct electric-field reconstruction, and quasi-automatic feedback chirp compensation was carried out using a programmable liquid-crystal spatial light modulator placed on the Fourier plane of a 4 - f system. As a result, 2.6 fs , 3.6 μ J , 1.3   cycle transform-limited (TL) pulses with a peak power up to 1.4 GW at a 1 kHz repetition rate were generated in the visible to near-infrared region (the over-one-octave bandwidth of 450 975 nm ). The fact that the IPM + SPM light was compressed to the TL duration is important toward the generation of a single, intense one-optical-cycle pulse in the visible region.

© 2007 Optical Society of America

OCIS Codes
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(320.5520) Ultrafast optics : Pulse compression

ToC Category:
Ultrafast Optics

History
Original Manuscript: November 16, 2006
Manuscript Accepted: December 8, 2006
Published: March 15, 2007

Citation
Eiichi Matsubara, Keisaku Yamane, Taro Sekikawa, and Mikio Yamashita, "Generation of 2.6 fs optical pulses using induced-phase modulation in a gas-filled hollow fiber," J. Opt. Soc. Am. B 24, 985-989 (2007)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-24-4-985

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