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In this paper a silicon-on-insulator nanorib waveguide with reverse-biased p-i-n-junction is used to experimentally demonstrate phase-sensitive amplification based on four-wave mixing for the realization of an in-line four-level phase-regenerator. Phase regeneration of a 14-GBd quadrature phase-shift keying signal is demonstrated for the first time employing a silicon waveguide as phase sensitive...
We developed a numerical model to investigate continuous wave four wave mixing (FWM) in silicon nano-waveguides with embedded PIN junctions. The model is complemented by fitting to the experimental data. Using the model we show that the FWM gain in silicon can compensate for all relevant loss mechanisms (two photon and free carrier absorption as well as linear loss) provided that the carrier lifetime...
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