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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 22 — Oct. 22, 2012
  • pp: 25014–25021

A single-stage optical load-balanced switch for data centers

Qirui Huang, Yong-Kee Yeo, and Luying Zhou  »View Author Affiliations


Optics Express, Vol. 20, Issue 22, pp. 25014-25021 (2012)
http://dx.doi.org/10.1364/OE.20.025014


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Abstract

Load balancing is an attractive technique to achieve maximum throughput and optimal resource utilization in large-scale switching systems. However current electronic load-balanced switches suffer from severe problems in implementation cost, power consumption and scaling. To overcome these problems, in this paper we propose a single-stage optical load-balanced switch architecture based on an arrayed waveguide grating router (AWGR) in conjunction with fast tunable lasers. By reuse of the fast tunable lasers, the switch achieves both functions of load balancing and switching through the AWGR. With this architecture, proof-of-concept experiments have been conducted to investigate the feasibility of the optical load-balanced switch and to examine its physical performance. Compared to three-stage load-balanced switches, the reported switch needs only half of optical devices such as tunable lasers and AWGRs, which can provide a cost-effective solution for future data centers.

© 2012 OSA

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(060.2340) Fiber optics and optical communications : Fiber optics components
(060.6719) Fiber optics and optical communications : Switching, packet

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: July 30, 2012
Revised Manuscript: October 2, 2012
Manuscript Accepted: October 2, 2012
Published: October 17, 2012

Citation
Qirui Huang, Yong-Kee Yeo, and Luying Zhou, "A single-stage optical load-balanced switch for data centers," Opt. Express 20, 25014-25021 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-22-25014


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