Run-time laser power management in photonic NoCs with on-chip semiconductor optical amplifiers

Ishan G. Thakkar, Sai Vineel Reddy Chittamuru, Sudeep Pasricha

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

31 Scopus citations

Abstract

Photonic network-on-chip (PNoC) architectures are projected to achieve very high bandwidth with relatively small data-dependent energy consumption compared to their electrical counterparts. However, PNoC architectures require a non-trivial amount of static laser power, which can offset most of the bandwidth and energy benefits. In this paper, we present a novel low-overhead technique for run-time management of laser power in PNoCs, which makes use of on-chip semiconductor amplifiers (SOA) to achieve traffic-independent and loss-aware savings in laser power consumption. Experimental analysis shows that our technique achieves 31.5% more laser power savings with 12.8% less latency overhead compared to another laser power management scheme from prior work.

Original languageEnglish
Title of host publication2016 10th IEEE/ACM International Symposium on Networks-on-Chip, NOCS 2016
ISBN (Electronic)9781467390309
DOIs
StatePublished - Sep 28 2016
Event10th IEEE/ACM International Symposium on Networks-on-Chip, NOCS 2016 - Nara, Japan
Duration: Aug 31 2016Sep 2 2016

Publication series

Name2016 10th IEEE/ACM International Symposium on Networks-on-Chip, NOCS 2016

Conference

Conference10th IEEE/ACM International Symposium on Networks-on-Chip, NOCS 2016
Country/TerritoryJapan
CityNara
Period8/31/169/2/16

Bibliographical note

Publisher Copyright:
© 2016 IEEE.

Keywords

  • Laser Source
  • Optical Signal Loss
  • Photonic Networks-On-Chip
  • Power Management

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture

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