A silicon photonic WDM network for high-performance macrochip communications

Xuezhe Zheng; Pranay Koka; Herb Schwetman; Jon Lexau; Ron Ho; Ivan Shubin; John E. Cunningham; Ashok V. Krishnamoorthy

doi:10.1117/12.813420

12 February 2009 A silicon photonic WDM network for high-performance macrochip communications

Xuezhe Zheng; Pranay Koka; Herb Schwetman; Jon Lexau; Ron Ho; Ivan Shubin; John E. Cunningham; Ashok V. Krishnamoorthy

Author Affiliations +

Proceedings Volume 7221, Photonics Packaging, Integration, and Interconnects IX; 72210E (2009) https://doi.org/10.1117/12.813420
Event: SPIE OPTO: Integrated Optoelectronic Devices, 2009, San Jose, California, United States

Abstract

We introduce a novel approach to interconnect multiple chips together with a silicon photonic WDM point-to-point network enabled by optical proximity communications to act as a single large piece of logical silicon much larger than a single reticle limit. We call this structure a macrochip. This non-blocking network provides all-to-all low-latency connectivity while maximizing bisection bandwidth, making it ideal for multi-core and multi-processor interconnections. We envision bisection bandwidth up to TBps for an 8x8 macrochip design. And a 5-6x improvement in latency can be achieved when compared to a purely electronic implementation. We also observe better overall performance over other optical network architectures.

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Xuezhe Zheng, Xuezhe Zheng, Pranay Koka, Pranay Koka, Herb Schwetman, Herb Schwetman, Jon Lexau, Jon Lexau, Ron Ho, Ron Ho, Ivan Shubin, Ivan Shubin, John E. Cunningham, John E. Cunningham, Ashok V. Krishnamoorthy, Ashok V. Krishnamoorthy, } "A silicon photonic WDM network for high-performance macrochip communications", Proc. SPIE 7221, Photonics Packaging, Integration, and Interconnects IX, 72210E (12 February 2009); doi: 10.1117/12.813420; https://doi.org/10.1117/12.813420

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