Experimental Demonstration of Multidimensional Switching Nodes for All-Optical Data Center Networks

Valerija Kamchevska, Ashenafi Kiros Medhin, Francesco Da Ros, Feihong Ye, Rameez Asif, Anna Manolova Fagertun, Sarah Renée Ruepp, Michael Stübert Berger, Lars Dittmann, Toshio Morioka, Leif Katsuo Oxenløwe, Michael Galili

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

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.
Original languageEnglish
JournalJournal of Lightwave Technology
Volume34
Issue number8
Pages (from-to)1837-1843
ISSN0733-8724
DOIs
Publication statusPublished - 2016

Bibliographical note

(c) 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works

Keywords

  • Data center networks
  • Optical switching
  • Space Division Multiplexing
  • Time division multiplexing
  • Wavelength division multiplexing

Cite this

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title = "Experimental Demonstration of Multidimensional Switching Nodes for All-Optical Data Center Networks",
abstract = "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.",
keywords = "Data center networks, Optical switching, Space Division Multiplexing, Time division multiplexing, Wavelength division multiplexing",
author = "Valerija Kamchevska and Medhin, {Ashenafi Kiros} and {Da Ros}, Francesco and Feihong Ye and Rameez Asif and Fagertun, {Anna Manolova} and Ruepp, {Sarah Ren{\'e}e} and Berger, {Michael St{\"u}bert} and Lars Dittmann and Toshio Morioka and Oxenl{\o}we, {Leif Katsuo} and Michael Galili",
note = "(c) 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works",
year = "2016",
doi = "10.1109/JLT.2016.2518863",
language = "English",
volume = "34",
pages = "1837--1843",
journal = "Journal of Lightwave Technology",
issn = "0733-8724",
publisher = "Institute of Electrical and Electronics Engineers",
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}

Experimental Demonstration of Multidimensional Switching Nodes for All-Optical Data Center Networks. / Kamchevska, Valerija; Medhin, Ashenafi Kiros; Da Ros, Francesco; Ye, Feihong; Asif, Rameez; Fagertun, Anna Manolova; Ruepp, Sarah Renée; Berger, Michael Stübert; Dittmann, Lars; Morioka, Toshio; Oxenløwe, Leif Katsuo; Galili, Michael.

In: Journal of Lightwave Technology, Vol. 34, No. 8, 2016, p. 1837-1843.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Experimental Demonstration of Multidimensional Switching Nodes for All-Optical Data Center Networks

AU - Kamchevska, Valerija

AU - Medhin, Ashenafi Kiros

AU - Da Ros, Francesco

AU - Ye, Feihong

AU - Asif, Rameez

AU - Fagertun, Anna Manolova

AU - Ruepp, Sarah Renée

AU - Berger, Michael Stübert

AU - Dittmann, Lars

AU - Morioka, Toshio

AU - Oxenløwe, Leif Katsuo

AU - Galili, Michael

N1 - (c) 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works

PY - 2016

Y1 - 2016

N2 - 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.

AB - 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.

KW - Data center networks

KW - Optical switching

KW - Space Division Multiplexing

KW - Time division multiplexing

KW - Wavelength division multiplexing

U2 - 10.1109/JLT.2016.2518863

DO - 10.1109/JLT.2016.2518863

M3 - Journal article

VL - 34

SP - 1837

EP - 1843

JO - Journal of Lightwave Technology

JF - Journal of Lightwave Technology

SN - 0733-8724

IS - 8

ER -