Journal ArticleDOI
Energy Efficient and Energy Proportional Optical Interconnects for Multi-Core Processors: Driving the Need for On-Chip Sources
TLDR
It is argued, based on arguments of energy efficiency and energy proportionality, that on-chip sources provide a dramatic overall system efficiency improvement, as compared to using an off-chip (comb) source.Abstract:
Silicon photonics is the prime candidate technology to realize an optical network-on-chip for global interconnects in future multi-core processors. Since silicon photonics lacks efficient native-substrate optical sources, the question is whether off-chip or heterogeneously integrated on-chip sources are the preferred technology. In this paper we argue, based on arguments of energy efficiency and energy proportionality, that on-chip sources provide a dramatic overall system efficiency improvement, as compared to using an off-chip (comb) source. We estimate an increase in source efficiency for on-chip lasers of close to 20 dB. These results provide a clear case to include on-chip lasers, such as hybrid silicon lasers, into the network architecture design.read more
Citations
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Journal ArticleDOI
Lasing in direct-bandgap GeSn alloy grown on Si
Stephan Wirths,R. Geiger,R. Geiger,N. von den Driesch,Gregor Mussler,Toma Stoica,Siegfried Mantl,Zoran Ikonic,Martina Luysberg,Stefano Chiussi,J. M. Hartmann,Hans Sigg,Jérôme Faist,Dan Buca,Detlev Grützmacher +14 more
TL;DR: In this paper, a direct bandgap GeSn alloy, grown directly onto Si(001), was used for experimentally demonstrating lasing threshold and linewidth narrowing at low temperatures.
Journal ArticleDOI
Roadmap on silicon photonics
David J. Thomson,Aaron Zilkie,John E. Bowers,Tin Komljenovic,Graham T. Reed,Laurent Vivien,Delphine Marris-Morini,Eric Cassan,Léopold Virot,Jean-Marc Fedeli,J. M. Hartmann,Jens H. Schmid,Dan-Xia Xu,Frederic Boeuf,Peter O'Brien,Goran Z. Mashanovich,Milos Nedeljkovic +16 more
TL;DR: In this article, the authors provide an overview and outlook for the silicon waveguide platform, optical sources, optical modulators, photodetectors, integration approaches, packaging, applications of silicon photonics and approaches required to satisfy applications at mid-infrared wavelengths.
Journal ArticleDOI
On-chip light sources for silicon photonics
TL;DR: Zhou et al. as discussed by the authors assess the three main contenders for on-chip light sources: erbium-based light sources, germanium-on-silicon lasers and III-V-based silicon lasers.
Journal ArticleDOI
Heterogeneous Silicon Photonic Integrated Circuits
Tin Komljenovic,Michael L. Davenport,Jared Hulme,Alan Y. Liu,Christos T. Santis,Alexander Spott,Sudharsanan Srinivasan,Eric J. Stanton,Chong Zhang,John E. Bowers +9 more
TL;DR: The impact active silicon photonic integrated circuits could have on interconnects, telecommunications, sensors, and silicon electronics is reviewed in this article, where the authors present a review of recent breakthroughs in the Silicon photonic technology and components.
Journal ArticleDOI
Highly integrated optical phased arrays: photonic integrated circuits for optical beam shaping and beam steering
TL;DR: In this paper, the authors present an overview of the state of the art of this technology and its opportunities, illustrated by recent breakthroughs, including beam steering systems on a photonic integrated circuit (PIC).
References
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Carbon Nanotubes: Present and Future Commercial Applications
Michael De Volder,Michael De Volder,Michael De Volder,Sameh Tawfick,Sameh Tawfick,Ray H. Baughman,A. John Hart,A. John Hart +7 more
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The Case for Energy-Proportional Computing
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Device Requirements for Optical Interconnects to Silicon Chips
TL;DR: The current performance and future demands of interconnects to and on silicon chips are examined and the requirements for optoelectronic and optical devices are project if optics is to solve the major problems of interConnects for future high-performance silicon chips.
Journal ArticleDOI
Large-scale nanophotonic phased array
TL;DR: This work demonstrates that a robust design, together with state-of-the-art complementary metal-oxide–semiconductor technology, allows large-scale NPAs to be implemented on compact and inexpensive nanophotonic chips and therefore extends the functionalities of phased arrays beyond conventional beam focusing and steering, opening up possibilities for large- scale deployment.
Proceedings ArticleDOI
Thousand core chips: a technology perspective
TL;DR: The many-core architecture, with hundreds to thousands of small cores, is presented to deliver unprecedented compute performance in an affordable power envelope and fine grain power management, memory bandwidth, on die networks, and system resiliency are discussed.