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Optics Letters

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  • Vol. 30, Iss. 3 — Feb. 1, 2005
  • pp: 227–229

Spectral Talbot phenomena of frequency combs induced by cross-phase modulation in optical fibers

José Azaña  »View Author Affiliations


Optics Letters, Vol. 30, Issue 3, pp. 227-229 (2005)
http://dx.doi.org/10.1364/OL.30.000227


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Abstract

Cross-phase modulation (XPM) of a frequency comb (finite-duration optical pulse sequence) by an intense, long Gaussian pump pulse is theoretically investigated, and new effects, namely, frequency-domain self-imaging phenomena (integer and fractional Talbot effects), are reported. The conditions favorable for observing spectral self-imaging phenomena by XPM are derived and numerically confirmed. The effects of nonidealities in a practical experiment (e.g., group-delay walk-off and dispersion) are also evaluated. One can use spectral self-imaging to tune the free spectral range of a frequency comb (without affecting the shape and bandwidth of the individual passbands) simply by adjusting the pump power in a fiber XPM scheme.

© 2005 Optical Society of America

OCIS Codes
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(070.6760) Fourier optics and signal processing : Talbot and self-imaging effects
(190.2620) Nonlinear optics : Harmonic generation and mixing
(320.7140) Ultrafast optics : Ultrafast processes in fibers

Citation
José Azaña, "Spectral Talbot phenomena of frequency combs induced by cross-phase modulation in optical fibers," Opt. Lett. 30, 227-229 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-3-227


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