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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 22 — Nov. 15, 2006
  • pp: 3324–3326

Two-dimensional quasi-phase-matched multiple-cascaded four-wave mixing in periodically poled K Ti O P O 4

M. Tiihonen and V. Pasiskevicius  »View Author Affiliations


Optics Letters, Vol. 31, Issue 22, pp. 3324-3326 (2006)
http://dx.doi.org/10.1364/OL.31.003324


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Abstract

A two-dimensional quasi-phase-matched structure is realized in a noncollinear, nondegenerate periodically poled K Ti O P O 4 parametric oscillator by utilizing the mutual coherence of two noncollinear pump beams. The mutually coherent pump beams form an interference pattern inside the crystal that is directed perpendicular to the existing quasi-phase-matched grating vector and acts as a parametric gain grating. The cavity itself supports two signal wavelengths around 1550 nm with tunable separation, while the gain grating reduces the operational threshold of the oscillator. Furthermore, with this two-dimensional quasi-phase-matched structure, we can demonstrate the generation of new spectral components through multiple χ ( 2 ) : χ ( 2 ) -cascaded four-wave mixing processes.

© 2006 Optical Society of America

OCIS Codes
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes

ToC Category:
Nonlinear Optics

History
Original Manuscript: May 17, 2006
Revised Manuscript: September 8, 2006
Manuscript Accepted: September 12, 2006
Published: October 26, 2006

Citation
M. Tiihonen and V. Pasiskevicius, "Two-dimensional quasi-phase-matched multiple-cascaded four-wave mixing in periodically poled KTiOPO4," Opt. Lett. 31, 3324-3326 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-22-3324

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