Abstract

Photonic crystal cavity-based switching is studied both theoretically and experimentally in order to identify the best configuration to maximize “wavelength conversion” efficiency. In particular, it is shown that an enhanced contrast can be reached when the probe is blueshifted with respect to the resonance. The use of an InP/SOI hybrid photonic crystal nanocavity is reported for the first time for all-optical error-free “wavelength conversion” at $20\mathrm{Gbit}/\mathrm{s}$ with a nonreturn to zero on-off keying signal.

© 2014 Optical Society of America

All-optical wavelength conversion and five-channel multicasting for 20  Gbit/s QPSK signals in a silicon waveguide

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