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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,...
We present our latest research results about ultralow power integrated nanophotonic devices based on photonic crystals and some more nanophotonics. We will also discuss the possibility to employ these integrated nanophotonics for putting optical computing technologies into a processor chip.
InGaAs-embedded photonic crystal photodetectors were demonstrated towards realizing photoreceivers with small junction capacitance. A 1-A/W responsivity and a 40-Gb/s eye opening were successfully confirmed for the 1.7-µm-long device.
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