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An ultralow switching energy of 1 fJ is demonstrated in an InGaAsP-based photonic crystal nanocavity with ultrasmall volume, which also contributes to the switching time window of 30 ps owing to the fast carrier diffusion.
We demonstrate all-optical bistable memory operation with InGaAsP photonic crystal nanocavities based on refractive index modulation caused by carrier-induced nonlinearity. The minimum bias power for bistability is extremely low at 40 muW and the operating energy required for switching is only 30 fJ.
We prepare and experimentally demonstrate dynamic switching of 1times4 InGaAsP/InP multimode interference (MMI) waveguide switch. The rise and fall times of 1.9 ns and 1.4 ns, respectively, are obtained and good crosstalk and extinction ratio of -14.47 dB and 23.39 dB, respectively, are obtained.
We demonstrate 1times4 InGaAsP/InP optical waveguide multimode interference (MMI) switch. Typical values for output power variation for each output port, crosstalk, extinction ratio, rise time, and fall time of switching were plusmn14 %, -14.47 dB, 23.39 dB, 680 ps and 440 ps, respectively. In addition, we present the demonstration of error-free switching operation.
We demonstrate all-optical bistable memory operation with 1.3 Q-InGaAsP photonic crystal nanocavities based on refractive index modulation caused by carrier-induced nonlinearity. The minimum bias power for bistability is extremely low at a few tens of muW and the operating energy required for switching is only 30 fJ.
A high-speed wavelength-tunable optical filter is a key device for selecting different wavelength optical packets on a packet-by-packet basis in a photonic packet switching system. In this paper, we describe a high-speed tunable filter using apodized sampled gratings which can achieve the required filter characteristics at low cost. A sampled grating structure that exhibits a comb-like filter response...
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