Extending the phase mismatch formalism for silicon-based wavelength converters

Yannick Lefevre; Nathalie Vermeulen; Christof Debaes; Hugo Thienpont

doi:10.1117/12.921851

10 May 2012 Extending the phase mismatch formalism for silicon-based wavelength converters

Yannick Lefevre, Nathalie Vermeulen, Christof Debaes, Hugo Thienpont

Proceedings Volume 8434, Nonlinear Optics and Applications VI; 84340A (2012) https://doi.org/10.1117/12.921851
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

Abstract

We present a generic approach to determine the phase mismatch for any optical nonlinear process. When applying this approach, which is based on the evaluation of local phase changes, to Raman- and Kerr-based four-wave-mixing in silicon waveguides, we obtain a novel expression for the phase mismatch which is more accurate as compared to the conventional definition; and which contains additional contributions due to the dispersion of the four-wave-mixing processes, the so-called four-wave-mixing dispersion. By means of numerical simulations, we show that this additional dispersion has a significant impact on the evolution of the phase mismatch along the waveguide, and thus on the conversion efficiency.

Citation Download Citation

Yannick Lefevre, Nathalie Vermeulen, Christof Debaes, and Hugo Thienpont "Extending the phase mismatch formalism for silicon-based wavelength converters", Proc. SPIE 8434, Nonlinear Optics and Applications VI, 84340A (10 May 2012); https://doi.org/10.1117/12.921851

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