CUED Publications database

Large port count high-speed optical switch fabric for use within datacenters [Invited]

Wonfor, A and Wang, H and Penty, RV and White, IH (2011) Large port count high-speed optical switch fabric for use within datacenters [Invited]. Journal of Optical Communications and Networking, 3. ISSN 1943-0620

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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 10-9. 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 Optical Society of America.

Item Type: Article
Uncontrolled Keywords: Ethernet networks Optical switches Packet switching Semiconductor optical amplifiers
Divisions: Div B > Photonics
Depositing User: Cron job
Date Deposited: 04 Feb 2015 22:05
Last Modified: 03 Jul 2015 10:58
DOI: 10.1364/JOCN.3.000A32