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The substantial energy dissipation of photoreceivers will obstruct dense photonic–electronic integration in keeping the development of processors and communications on a chip. Nanophotodetectors offer the opportunity to overcome this problem by allowing us to realize an amplifier-free bias-free receiver. Low device capacitance and forward-biased operation are the keys to achieving such a receiver,...
A tuned L3 design with an enhanced Q factor and a small mode volume enabled 2.3-nW bias power for a buried-heterostructure InGaAsP/InP nanocavity optical memory that was 1/10 of the previous record (30 nW).
We demonstrate enhanced optical nonlinearity in a coupled-resonator optical waveguide comprised of 200 silicon photonic crystal nanocavities. We have obtained the effective nonlinear constant γ as 6,600 /W/m through the four wave mixing experiment.
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