Optical interconnects in exascale supercomputers
Jeffrey A. Kash, Alan F. Benner, et al.
PHOTINICS 2010
We present a novel approach for achieving fine phase-tuning control of a Mach-Zehnder interferometer-based photonic switch. We demonstrate the concept in a fabricated silicon photonic switch containing dual thermo-optic phase tuners driven from identical monolithically integrated low-resolution digital-to-analog converters. The delivered resolution gains and additional power overheads of the demonstrated approach are assessed through experimental measurements. Using the approach, we show a resolution improvement of more than a factor of seven with only a 1.7% increase in power dissipation.
Jeffrey A. Kash, Alan F. Benner, et al.
PHOTINICS 2010
Jason S. Orcutt, Douglas M. Gill, et al.
OFC 2016
Alexander V. Rylyakov, Clint L. Schow, et al.
OFC 2010
Clint L. Schow, Fuad E. Doany, et al.
Journal of Lightwave Technology