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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: George I. Stegeman
  • Vol. 22, Iss. 10 — Oct. 1, 2005
  • pp: 2263–2269

Multimode guided-wave non- 3 ω third-harmonic generation by ultrashort laser pulses

Aleksei Zheltikov  »View Author Affiliations


JOSA B, Vol. 22, Issue 10, pp. 2263-2269 (2005)
http://dx.doi.org/10.1364/JOSAB.22.002263


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Abstract

Unlike third-harmonic generation in a monochromatic field, which gives rise to a signal at the frequency 3 ω 0 , with ω 0 being the frequency of the pump field, a broadband ultrashort pump pulse can generate isolated spectral peaks that are substantially shifted from the frequency 3 ω 0 . In the multimode guided-wave regime, this non- 3 ω third-harmonic generation maps adjacent guided modes of the third harmonic onto a manifold of spectral peaks around 3 ω 0 . The spectral shifts and the widths of these peaks are controlled by the phase and group-velocity mismatch between the pump field and third-harmonic modes, as well as the length of nonlinear-optical interaction, allowing the spectral contents of the third-harmonic signal to be engineered by tailoring the dispersion of the pump and third-harmonic modes involved in the nonlinear-optical process. Photonic-crystal fibers possess a unique combination of properties required to achieve large frequency shifts in non- 3 ω third-harmonic generation, allowing efficient tunable frequency upconversion based on this phenomenon.

© 2005 Optical Society of America

OCIS Codes
(190.4360) Nonlinear optics : Nonlinear optics, devices
(190.4370) Nonlinear optics : Nonlinear optics, fibers

ToC Category:
Photonic Crystals

Citation
Aleksei Zheltikov, "Multimode guided-wave non-3omega third-harmonic generation by ultrashort laser pulses," J. Opt. Soc. Am. B 22, 2263-2269 (2005)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-22-10-2263

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