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Opt Lett. 2012 Apr 1;37(7):1262-4. doi: 10.1364/OL.37.001262.

Quasi-phase-matched DC-induced three wave mixing versus four wave mixing: a simulated comparison.

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  • 1Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada.


A comparison is made between DC-induced three-wave mixing under an on-off quasi-phase-matching scheme and a perfectly phase-matched four wave mixing process. It is shown that the DC-induced process is capable of producing a significantly larger conversion efficiency than the four wave mixing process. Despite the fact that it suffers greater effects of dispersion, the enhanced growth rate of the DC-induced process provides a conversion efficiency roughly 300× larger than that of four wave mixing. Over a sample length of 20 cm the DC-induced process is able to generate idler power more than 270 times greater than that produced by the equivalent four wave mixing process.

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