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
AU - Berger, Michael
AU - Dittmann, Lars
AU - Morioka, Toshio
AU - Oxenløwe, Leif Katsuo
AU - Galili, Michael
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/4/15
Y1 - 2016/4/15
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
UR - http://www.scopus.com/inward/record.url?scp=84963554023&partnerID=8YFLogxK
U2 - 10.1109/JLT.2016.2518863
DO - 10.1109/JLT.2016.2518863
M3 - Article
AN - SCOPUS:84963554023
VL - 34
SP - 1837
EP - 1843
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
SN - 0733-8724
IS - 8
M1 - 7384683
ER -