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Enhancing FWM Conversion Efficiency in a Silicon Waveguide by exploiting Phase-Matching via a Pump-induced Nonlinear Grating

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Abstract

We show that the anisotropy of Si may be used to induce a nonlinear grating on-chip, which could be exploited by FWM to phase-match signals well outside of the conversion bandwidth, allowing a >10dB conversion-efficiency-enhancement.

© 2011 Optical Society of America

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