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Optics Letters

Optics Letters


  • Vol. 30, Iss. 15 — Aug. 1, 2005
  • pp: 2025–2027

Spectral compression of femtosecond pulses in photonic crystal fibers

Esben Ravn Andresen, Jan Thøgersen, and Søren Rud Keiding  »View Author Affiliations

Optics Letters, Vol. 30, Issue 15, pp. 2025-2027 (2005)

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We demonstrate efficient spectral compression of femtosecond pulses near the zero-dispersion wavelength in nonlinear photonic crystal fibers (PCFs). The highest measured compression factor is 21, in which case the spectral brightness increases by a factor of 5. We numerically model the pulse propagation and find good agreement with the experiment. We argue that the fibers studied allow for spectral narrowing of more than 2 orders of magnitude. With dispersion-shifted PCFs, efficient spectral compression can take place across the visible and near-infrared part of the spectrum.

© 2005 Optical Society of America

OCIS Codes
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(190.2620) Nonlinear optics : Harmonic generation and mixing

Esben Ravn Andresen, Jan Thøgersen, and Søren Rud Keiding, "Spectral compression of femtosecond pulses in photonic crystal fibers," Opt. Lett. 30, 2025-2027 (2005)

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