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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 20 — Oct. 2, 2006
  • pp: 9358–9370

Adiabatic compression of quadratic temporal solitons in aperiodic quasi-phase-matching gratings

Xianglong Zeng, Satoshi Ashihara, Nobuhide Fujioka, Tsutomu Shimura, and Kazuo Kuroda  »View Author Affiliations

Optics Express, Vol. 14, Issue 20, pp. 9358-9370 (2006)

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We numerically show that it is possible to achieve adiabatic compression of femtosecond quadratic solitons in aperiodically poled lithium niobate device. Two-colored solitons of the fundamental wavelength of 1560 nm can be adiabatically shaped by using group-velocity matching schemes available in quasi-phase-matching (QPM) devices. We investigate the performance of the adiabatic compression based on two different group-velocity matching schemes: type-I (e: o + o) collinear QPM geometry and type-0 (e: e + e) non-collinear QPM geometry. Two-colored temporal solitons with pulse duration of 35 fs are generated without visible pedestals from 100-fs fundamental pulse. We also show that walking solitons with shorter pulse durations are adiabatically excited under small group-velocity mismatch condition. The walking solitons experience deceleration or acceleration during compression, depending on the sign of the group-velocity-mismatch. The demonstrated adiabatic pulse shaping is useful for generation of shorter pulses with clean temporal profiles, efficient femtosecond second harmonic generation and group-velocity control.

© 2006 Optical Society of America

OCIS Codes
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(320.5520) Ultrafast optics : Pulse compression

ToC Category:
Nonlinear Optics

Original Manuscript: July 25, 2006
Revised Manuscript: September 11, 2006
Manuscript Accepted: September 12, 2006
Published: October 2, 2006

Xianglong Zeng, Satoshi Ashihara, Nobuhide Fujioka, Tsutomu Shimura, and Kazuo Kuroda, "Adiabatic compression of quadratic temporal solitons in aperiodic quasi-phase-matching gratings," Opt. Express 14, 9358-9370 (2006)

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