A new perspective on burst-switched optical networks

Recent experimental research in coherent detection has enabled 100G (or higher bit-rate) optical receivers to switch between wavelengths in less than a hundred nanoseconds. Such technologies enable a novel variant of the Time-domain Wavelength Interleaved Networks (TWIN) architecture in which fast tunable receivers replace tunable transmitters as the main switching elements in the otherwise passive optical network. Similar to TWIN, this architecture enables efficient sharing of 100G (or higher) wavelength rates among multiple destinations in metro networks or data centers where individual node-pairs may not need the full capacity of each wavelength. In this paper, we present the key elements of this novel variant of TWIN, discuss framing and scheduling efficiency, sub- and super-framing for TDM and packet data, as well as protection mechanisms. We also present the benefit of this approach relative to other optical network technologies. We conclude with an overview of the potential applications of this novel optical networking architecture.

[1]  Chunming Qiao,et al.  Optical burst switching (OBS) - a new paradigm for an Optical Internet^{1} , 1999, J. High Speed Networks.

[2]  Debasis Mitra,et al.  Light core and intelligent edge for a flexible, thin-layered, and cost-effective optical transport network , 2003, IEEE Commun. Mag..

[3]  Iraj Saniee,et al.  Design and performance of randomized schedules for time-domain wavelength interleaved networks , 2009, Bell Labs Technical Journal.

[4]  Nicholas Bambos,et al.  Dynamic scheduling of optical data bursts in time-domain wavelength interleaved networks , 2003, 11th Symposium on High Performance Interconnects, 2003. Proceedings..

[5]  P J Winzer,et al.  Fast-tuning 224-Gb/s intradyne receiver for optical packet networks , 2010, 2010 Conference on Optical Fiber Communication (OFC/NFOEC), collocated National Fiber Optic Engineers Conference.

[6]  Pablo Pavón-Mariño,et al.  On the Myths of Optical Burst Switching , 2011, IEEE Transactions on Communications.

[7]  Iraj Saniee,et al.  Performance of a distributed scheduling protocol for TWIN , 2004, PERV.

[8]  D Chiaroni,et al.  Optical packet add/drop systems , 2010, 2010 Conference on Optical Fiber Communication (OFC/NFOEC), collocated National Fiber Optic Engineers Conference.

[9]  S. Bigo,et al.  Experimental demonstration of a PDM QPSK real-time burst mode coherent receiver in a packet switched network , 2012, 2012 38th European Conference and Exhibition on Optical Communications.