Fast Optical Circuit Switch for Intra-Datacenter Networking

This paper presents a fast and large-scale optical circuitswitch architecture for intra-datacenter applications that uses a combination of space switches and wavelength-routing switches are utilized. A 1,440 × 1,440 optical switch is designed with a fast-tunable laser, 8 × 8 deliveryand-coupling switch, and a 180 × 180 wavelength-routing switch. We test the bit-error-ratio characteristics of all ports of the wavelength-routing switch using 180-wavelength 10-Gbps signals in the full C-band. The worst switching time, 498 microseconds, is confirmed and all bit-error ratios are acceptable. key words: switching, circuit, array waveguide devices

[1]  Ioannis Tomkos,et al.  A Survey on Optical Interconnects for Data Centers , 2012, IEEE Communications Surveys & Tutorials.

[2]  A Wonfor,et al.  Demonstration of the feasibility of large-port-count optical switching using a hybrid Mach-Zehnder interferometer-semiconductor optical amplifier switch module in a recirculating loop. , 2014, Optics letters.

[3]  Hiroshi Hasegawa,et al.  A large-scale wavelength routing optical switch for data center networks , 2013, IEEE Communications Magazine.

[4]  A. Wonfor,et al.  Low-energy, high-performance lossless 8×8 SOA switch , 2015, 2015 Optical Fiber Communications Conference and Exhibition (OFC).

[5]  Yojiro Mori,et al.  Optimum Power-budget Allocation for Large-scale Optical Switches Utilizing Cyclic Arrayed Waveguide Gratings , 2014 .

[6]  A. Vahdat.  Delivering scale out data center networking with optics — Why and how , 2012, OFC/NFOEC.

[7]  T. Shibata,et al.  $N \times N$ Cyclic-Frequency Router With Improved Performance Based on Arrayed-Waveguide Grating , 2009, Journal of Lightwave Technology.

[8]  Amin Vahdat,et al.  A scalable, commodity data center network architecture , 2008, SIGCOMM '08.

[9]  Hiroshi Hasegawa,et al.  A 270 × 270 optical cross-connect switch utilizing wavelength routing with cascaded AWGs , 2013, 2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC).

[10]  Yojiro Mori,et al.  Demonstration of 1,440×1,440 fast optical circuit switch for datacenter networking , 2016, 2016 21st OptoElectronics and Communications Conference (OECC) held jointly with 2016 International Conference on Photonics in Switching (PS).

[11]  S. Namiki,et al.  Suppression of channel-by-channel variation in wavelength switching time of TDA-CSG-DR laser , 2014, 2014 OptoElectronics and Communication Conference and Australian Conference on Optical Fibre Technology.

[12]  Amin Vahdat,et al.  Helios: a hybrid electrical/optical switch architecture for modular data centers , 2010, SIGCOMM '10.

[13]  Kimishima Naoki,et al.  Determination method of wavelength for wavelength switching with uniform-loss properties using cyclic-frequency Arrayed-Waveguide Grating , 2011 .

[14]  K. Oda,et al.  Transmission characteristics of arrayed waveguide N/spl times/N wavelength multiplexer , 1995 .

[15]  David A. Maltz,et al.  Network traffic characteristics of data centers in the wild , 2010, IMC '10.