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Opt Express. 2010 Apr 12;18(8):7770-81. doi: 10.1364/OE.18.007770.

Optical signal processing on a silicon chip at 640Gb/s using slow-light.

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  • 1Institute for Photonics and Optical Sciences (IPOS), Centre for Ultra-high Bandwidth Devices for Optical Systems (CUDOS), School of Physics, University of Sydney, New South Wales 2006 Australia.

Abstract

We demonstrate optical performance monitoring of in-band optical signal to noise ratio (OSNR) and residual dispersion, at bit rates of 40Gb/s, 160Gb/s and 640Gb/s, using slow-light enhanced optical third harmonic generation (THG) in a compact (80microm) dispersion engineered 2D silicon photonic crystal waveguide. We show that there is no intrinsic degradation in the enhancement of the signal processing at 640Gb/s relative to that at 40Gb/s, and that this device should operate well above 1Tb/s. This work represents a record 16-fold increase in processing speed for a silicon device, and opens the door for slow light to play a key role in ultra-high bandwidth telecommunications systems.

PMID:
20588618
[PubMed]
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