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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 18, Iss. 4 — Apr. 1, 2001
  • pp: 534–539

Pulse shaping by difference-frequency mixing with quasi-phase-matching gratings

G. Imeshev, M. M. Fejer, A. Galvanauskas, and D. Harter  »View Author Affiliations


JOSA B, Vol. 18, Issue 4, pp. 534-539 (2001)
http://dx.doi.org/10.1364/JOSAB.18.000534


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Abstract

We present a theory of ultrashort-pulse difference-frequency generation (DFG) with quasi-phase-matching (QPM) gratings in the undepleted-pump, unamplified-signal approximation. In the special case of a cw (or quasi-cw) pump, the spectrum of the generated idler is related to the spectrum of the signal through a transfer-function relation that is valid for arbitrary dispersion in the medium. The engineerability of this QPM-DFG transfer function establishes the basis for arbitrary pulse shaping. Experimentally we demonstrate QPM-DFG devices operating in a frequency-degenerate type II configuration and producing pulse-shaped output at 1550 nm from 220-fs pulses at 1550 nm.

© 2001 Optical Society of America

OCIS Codes
(140.7090) Lasers and laser optics : Ultrafast lasers
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4360) Nonlinear optics : Nonlinear optics, devices
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(230.4320) Optical devices : Nonlinear optical devices
(320.5540) Ultrafast optics : Pulse shaping
(320.7080) Ultrafast optics : Ultrafast devices
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

Citation
G. Imeshev, M. M. Fejer, A. Galvanauskas, and D. Harter, "Pulse shaping by difference-frequency mixing with quasi-phase-matching gratings," J. Opt. Soc. Am. B 18, 534-539 (2001)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-18-4-534


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