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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 24 — Dec. 15, 2009
  • pp: 3851–3853

Sub-two-cycle pulses by soliton self-compression in highly nonlinear photonic crystal fibers

A. A. Amorim, M. V. Tognetti, P. Oliveira, J. L. Silva, L. M. Bernardo, F. X. Kärtner, and H. M. Crespo  »View Author Affiliations

Optics Letters, Vol. 34, Issue 24, pp. 3851-3853 (2009)

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We demonstrate the direct generation of sub-two-cycle pulses by soliton self-compression of femtosecond pulses from a Ti:sapphire laser at 85 MHz using a 4.85 - mm -long highly nonlinear photonic crystal fiber. Sub-nanojoule, 41 fs input pulses were compressed down to 4.6 fs without additional phase compensation schemes. To our knowledge, these are the shortest pulses obtained by soliton-effect compression of a laser oscillator. Efficient, near-dispersionless collimation of the fiber output was achieved with a simple lens and an octave-spanning double-chirped mirror pair. The full electric field of the compressed pulses was retrieved with a genetic algorithm applied to spectral and interferometric autocorrelation measurements, and the results are well described by numerical simulations.

© 2009 Optical Society of America

OCIS Codes
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
(320.2250) Ultrafast optics : Femtosecond phenomena
(320.5520) Ultrafast optics : Pulse compression
(320.7100) Ultrafast optics : Ultrafast measurements
(060.5295) Fiber optics and optical communications : Photonic crystal fibers

ToC Category:
Ultrafast Optics

Original Manuscript: August 12, 2009
Manuscript Accepted: October 11, 2009
Published: December 9, 2009

A. A. Amorim, M. V. Tognetti, P. Oliveira, J. L. Silva, L. M. Bernardo, F. X. Kärtner, and H. M. Crespo, "Sub-two-cycle pulses by soliton self-compression in highly nonlinear photonic crystal fibers," Opt. Lett. 34, 3851-3853 (2009)

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