Simultaneous phase matching and internal interference of two second-order nonlinear parametric processes

doi:10.1364/OE.14.011756

Simultaneous phase matching and internal interference of two second-order nonlinear parametric processes

Benjamin F. Johnston, Peter Dekker, Michael J. Withford, Solomon M. Saltiel, and Yuri S. Kivshar »View Author Affiliations

Optics Express, Vol. 14, Issue 24, pp. 11756-11765 (2006)
http://dx.doi.org/10.1364/OE.14.011756

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Abstract

We demonstrate the simultaneous generation and internal interference of two second-order parametric processes in a single nonlinear quadratic crystal. The two-frequency doubling processes are Type 0 (two extraordinary fundamental waves generate an extraordinary secondharmonic wave) and Type I (two ordinary fundamental waves generate an extraordinary second-harmonic wave) parametric interactions. The phasematching conditions for both processes are satisfied in a single periodically poled grating in LiNbO₃ using quasi-phase-matching (QPM) vectors with different orders. We observe an interference of two processes, and compare the results with the theoretical analysis. We suggest several applications of this effect such as polarization-independent frequency doubling and a method for stabilizing the level of the generated second-harmonic signal.

OCIS Codes
(190.4360) Nonlinear optics : Nonlinear optics, devices
(230.4320) Optical devices : Nonlinear optical devices

ToC Category:
Nonlinear Optics

History
Original Manuscript: September 19, 2006
Revised Manuscript: November 2, 2006
Manuscript Accepted: November 3, 2006
Published: November 27, 2006

Citation
Benjamin F. Johnston, Peter Dekker, Michael J. Withford, Solomon M. Saltiel, and Yuri S. Kivshar, "Simultaneous phase matching and internal interference of two second-order nonlinear parametric processes," Opt. Express 14, 11756-11765 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-24-11756

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References

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