Journal article
Experimental Demonstration of Multidimensional Switching Nodes for All-Optical Data Center Networks
Department of Photonics Engineering, Technical University of Denmark1
Ultra-fast Optical Communication, Department of Photonics Engineering, Technical University of Denmark2
Centre of Excellence for Silicon Photonics for Optical Communications, Centers, Technical University of Denmark3
Networks Technology and Service Platforms, Department of Photonics Engineering, Technical University of Denmark4
Copenhagen Center for Health Technology, Centers, Technical University of Denmark5
This paper reports on a novel ring-based data center architecture composed of multidimensional switching nodes. The nodes are interconnected with multicore fibers and can provide switching in three different physical, hierarchically overlaid dimensions (space, wavelength, and time). The proposed architecture allows for scaling in different dimensions while at the same time providing support for connections with different granularity.
The ring topology reduces the number of different physical links required, leading to simplified cabling and easier link management, while optical bypass holds the prospect of low latency and low-power consumption. The performance of the multidimensional switching nodes has been investigated in an experimental demonstration comprising three network nodes connected with multicore fibers.
Both high capacity wavelength connections and time-shared subwavelength connections have been established for connecting different nodes by switching in different physical dimensions. Error-free performance (BER < 10−9 ) has been achieved for all the connections with various granularity in all the investigated switching scenarios.
The scalability of the system has been studied by increasing the transmission capacity to 1 Tbit/s/core equivalent to 7 Tbit/s total throughput in a single seven-core multicore fiber. The error-free performance (BER < 10−9 ) for all the connections confirms that the proposed architecture can meet the existing demands in data centers and accommodate the future traffic growth.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2016 |
| Pages: | 1837-1843 |
| ISSN: | 15582213 and 07338724 |
| Types: | Journal article |
| DOI: | 10.1109/JLT.2016.2518863 |
| ORCIDs: | Kamchevska, Valerija , Da Ros, Francesco , Fagertun, Anna Manolova , Ruepp, Sarah Renée , Berger, Michael Stübert , Dittmann, Lars , Morioka, Toshio , Oxenløwe, Leif Katsuo and Galili, Michael |
Data center networks Optical switching Space Division Multiplexing Time division multiplexing Wavelength division multiplexing
Multicore processing Optical buffering Optical fiber devices Optical fiber networks Optical switches all-optical data center networks computer centres error-free performance high capacity wavelength connections low-power consumption multicore fibers multidimensional switching nodes novel ring-based data center architecture optical bypass optical fibre networks optical switches optical switching ring topology space division multiplexing time division multiplexing time-shared subwavelength connections wavelength division multiplexing
