Nanophotonic integrated circuits from nanoresonators grown on silicon

Roger Chen, Kar Wei Ng, Wai Son Ko, Devang Parekh, Fanglu Lu, Thai-Truong D. Tran, Kun Li and Connie Chang-Hasnain ()
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Roger Chen: University of California at Berkeley
Kar Wei Ng: University of California at Berkeley
Wai Son Ko: University of California at Berkeley
Devang Parekh: University of California at Berkeley
Fanglu Lu: University of California at Berkeley
Thai-Truong D. Tran: University of California at Berkeley
Kun Li: University of California at Berkeley
Connie Chang-Hasnain: University of California at Berkeley

Nature Communications, 2014, vol. 5, issue 1, 1-10

Abstract: Abstract Harnessing light with photonic circuits promises to catalyse powerful new technologies much like electronic circuits have in the past. Analogous to Moore’s law, complexity and functionality of photonic integrated circuits depend on device size and performance scale. Semiconductor nanostructures offer an attractive approach to miniaturize photonics. However, shrinking photonics has come at great cost to performance, and assembling such devices into functional photonic circuits has remained an unfulfilled feat. Here we demonstrate an on-chip optical link constructed from InGaAs nanoresonators grown directly on a silicon substrate. Using nanoresonators, we show a complete toolkit of circuit elements including light emitters, photodetectors and a photovoltaic power supply. Devices operate with gigahertz bandwidths while consuming subpicojoule energy per bit, vastly eclipsing performance of prior nanostructure-based optoelectronics. Additionally, electrically driven stimulated emission from an as-grown nanostructure is presented for the first time. These results reveal a roadmap towards future ultradense nanophotonic integrated circuits.

Date: 2014
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DOI: 10.1038/ncomms5325

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