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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and V. Chan
  • Vol. 3, Iss. 8 — Aug. 1, 2011
  • pp: A32–A39

Large Port Count High-Speed Optical Switch Fabric for Use Within Datacenters [Invited]

A. Wonfor, H. Wang, R. V. Penty, and I. H. White  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 3, Issue 8, pp. A32-A39 (2011)
http://dx.doi.org/10.1364/JOCN.3.000A32


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Abstract

This paper reviews advances in the technology of integrated semiconductor optical amplifier based photonic switch fabrics, with particular emphasis on their suitability for high performance network switches for use within a datacenter. The key requirements for large port count optical switch fabrics are addressed noting the need for switches with substantial port counts. The design options for a 16 × 16 port photonic switch fabric architecture are discussed and the choice of a Clos–tree design is described. The control strategy, based on arbitration and scheduling, for an integrated switch fabric is explained. The detailed design and fabrication of the switch is followed by experimental characterization, showing net optical gain and operation at 10 Gb/s with bit error rates lower than 1 0 9 . Finally improvements to the switch are suggested, which should result in 100 Gb/s per port operation at energy efficiencies of 3 pJ/bit.

© 2011 OSA

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(250.5980) Optoelectronics : Semiconductor optical amplifiers
(130.4815) Integrated optics : Optical switching devices
(060.6719) Fiber optics and optical communications : Switching, packet

ToC Category:
Optics in the Data Center

History
Original Manuscript: February 7, 2011
Revised Manuscript: May 16, 2011
Manuscript Accepted: June 11, 2011
Published: July 13, 2011

Virtual Issues
(2011) Advances in Optics and Photonics

Citation
A. Wonfor, H. Wang, R. V. Penty, and I. H. White, "Large Port Count High-Speed Optical Switch Fabric for Use Within Datacenters [Invited]," J. Opt. Commun. Netw. 3, A32-A39 (2011)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-3-8-A32

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