Photonic integrated circuits are developing as key enabling components for high-performance computing and advanced network-on-chip
as well as other emerging technologies such as lab-on-chip sensors
with relevant applications in areas from medicine and biotechnology to aerospace. These demanding applications will require novel features
such as dynamically reconfigurable light pathways
obtained by properly harnessing on-chip optical radiation. In this paper
we introduce a broadband
high directivity (
>
150)
low loss and reconfigurable silicon photonics nanoantenna that fully enables on-chip radiation control. We propose the use of these nanoantennas as versatile building blocks to develop wireless (unguided) silicon photonic devices
which considerably enhance the range of achievable integrated photonic functionalities. As examples of applications
we demonstrate 160 Gbit s
−1
data transmission over mm-scale wireless interconnects
a compact low-crosstalk 12-port crossing and electrically reconfigurable pathways via optical beam steering. Moreover
the realization of a flow micro-cytometer for particle characterization demonstrates the smart syste
m integration potential of our approach as lab-on-chip devices.
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Institute of Photonics, Department of Physics, University of Strathclyde
Institute of Photonics and Quantum Sciences, Heriot-Watt University
Centre for Ultrahigh bandwidth Devices for Optical Systems (CUDOS), Institute of Photonics and Optical Science (IPOS), School of Physics, University of Sydney