Pulse Evolution and Phase Sensitive Amplification in Silicon Waveguides
Yanbing Zhang, Chad Husko, Jochen Schroder, and Ben J. Eggleton
TL;DR
This paper presents an analytic solution for pulse propagation and phase sensitive amplification in silicon waveguides, accounting for two-photon absorption and free carriers, supported by numerical and experimental validation.
Contribution
It introduces the first analytic model for high-nonlinearity pulse evolution in silicon waveguides including TPA and free carriers, explaining their impact on signal gain.
Findings
Analytic solution accurately describes pulse evolution with TPA and free carriers.
Numerical and experimental results confirm the analytic predictions.
Insights into how TPA and free carriers influence phase sensitive amplification.
Abstract
We for the first time provide an analytic solution for pulse propagation and phase sensitive amplification in the regime of high nonlinearity in silicon waveguides including two-photon absorption (TPA) and free carriers. Our analytic results clearly explain why and how the TPA and free carriers affect the signal gain. These observation are confirmed with numerical modelling and experimental results.
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