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Novel active MMI bi-stable laser diodes are proposed and demonstrated. Using partly saturable-absorber configuration in active MMI, extremely wide hysteresis window of 94mA was achieved with 30fJ optical switching energy in 335??m total device length.
We demonstrate an all-optical wavelength-routing switch monolithically integrated with four wavelength converters and an 8times8 arrayed-waveguide-grating (AWG) filter. In the switch, double-ring-resonator-coupled tunable laser diodes allow rapid and stable switching between output ports (~5 ns) and optical gates based on a parallel amplifier structure prevent the input optical signal from being routed...
A filter-free widely tunable wavelength converter was developed by monolithically integrating a tunable laser based on a double-ring resonator and an optical gate based on a parallel amplifier structure. Wavelength conversion for a 10-Gbit/s NRZ signal is also demonstrated, tunable over a 40-nm range.
In this study, we apply recently-developed photonic-crystal ultrahigh-Q nanocavities to on-chip all-optical control, including all-optical bistable nodes towards photonic RAM and all-optical logic, all-dielectric slow-light media, and novel adiabatic wavelength conversion.
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