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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 35, Iss. 3 — Feb. 1, 2010
  • pp: 363–365

Random quasi-phase-matched second-harmonic generation in periodically poled lithium tantalate

S. Stivala, A. C. Busacca, A. Pasquazi, R. L. Oliveri, R. Morandotti, and G. Assanto  »View Author Affiliations


Optics Letters, Vol. 35, Issue 3, pp. 363-365 (2010)
http://dx.doi.org/10.1364/OL.35.000363


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Abstract

We observe second harmonic generation via random quasi-phase-matching in a 2.0 μ m periodically poled, 1-cm-long, z-cut lithium tantalate. Away from resonance, the harmonic output profiles exhibit a characteristic pattern stemming from a stochastic domain distribution and a quadratic growth with the fundamental excitation, as well as a broadband spectral response. The results are in good agreement with a simple model and numerical simulations in the undepleted regime, assuming an anisotropic spread of the random nonlinear component.

© 2010 Optical Society of America

OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(190.2620) Nonlinear optics : Harmonic generation and mixing

ToC Category:
Nonlinear Optics

History
Original Manuscript: September 23, 2009
Revised Manuscript: November 25, 2009
Manuscript Accepted: November 27, 2009
Published: January 26, 2010

Citation
S. Stivala, A. C. Busacca, A. Pasquazi, R. L. Oliveri, R. Morandotti, and G. Assanto, "Random quasi-phase-matched second-harmonic generation in periodically poled lithium tantalate," Opt. Lett. 35, 363-365 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-3-363


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