Modal phase-matching of second-order nonlinearities at silicon-oxy-nitride interfaces in multi-layer waveguides
2013
We establish multi-layer dielectric waveguides as a platform for exploiting interface second-order nonlinearities. We demonstrate phase-matched second-harmonic generation in a silicon-oxy-nitride waveguide with an external efficiency of ∼6 ×10 −4 %/W.
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