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arXiv · 1912.03950

Discrete Diffraction for Spectral Purification in Spontaneous Four Wave Mixing: a Recipe

Philip B. Main·Peter J. Mosley·Andrey V. Gorbach
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Abstract

Linear discrete diffraction of light within a waveguide array allows control over the longitudinal spatial profile of light. We propose a method of using this control to effectively modulate the nonlinearity in a spontaneous four wave mixing system. This allows the removal spurious frequency correlations between the generated signal and idler photon pairs. Weaving our method into a recipe for waveguide design, we demonstrate a spectral purity improvement from P = 0.78 to near saturation at P = 0.97, for a simple silicon-on-insulator geometry.

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Philip B. Main, Peter J. Mosley, Andrey V. Gorbach. 2019-12-09. Discrete Diffraction for Spectral Purification in Spontaneous Four Wave Mixing: a Recipe. https://arxiv.org/abs/1912.03950

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