Title :
Scalable Optical Packet Switches for Multiple Data Formats and Data Rates Packets
Author :
Calabretta, Nicola ; Wang, W. ; Ditewig, T. ; Raz, Oded ; Agis, Fausto Gomez ; de Waardt, S.Z.H. ; Dorren, H.J.S.
Author_Institution :
COBRA Res. Inst., Eindhoven Univ. of Technol., Eindhoven, Netherlands
fDate :
4/1/2010 12:00:00 AM
Abstract :
We demonstrate an optical packet switch (OPS) subsystem employing in-band labeling to allow for transparent routing of packets with multiple data formats and data bit rates. Packets employing in-band labels can be processed without the need to reconfigure the label processor and the switch when changing data format and bit-rate. The label processor is based on asynchronous optical signal processing in combination with a simple electronic combinatory network. This makes the label processor capable to process a large number of labels with low latency time (<3 ns) without complicated and power-hungry high-speed packet clock recovery and serializer/deserializer circuits. Experimental results show error-free operation of 1 ?? 64 OPS subsystem for 160-Gb/s return-to-zero on-off keying and 120-Gb/s nonreturn-to-zero differential phase-shift keying multiwavelength packets.
Keywords :
optical communication; optical switches; packet switching; phase shift keying; telecommunication network routing; OPS subsystem; bit rate 120 Gbit/s; bit rate 160 Gbit/s; data rates packets; deserializer circuits; electronic combinatory network; high-speed packet clock recovery; in-band labeling; multiple data formats; nonreturn-to-zero differential phase-shift keying multiwavelength packets; optical signal processing; scalable optical packet switches; serializer circuitsts; transparent routing; Fiber Bragg grating (FBG); label processor; optical packet switching; optical signal processing; optical switch;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2040993