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Related Experiment Video

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Quasi-light Storage for Optical Data Packets
07:45

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Published on: February 6, 2014

All-optical 100-Gbit/s word packet time-division-multiplexed access node in a looped-back configuration: enabling

J W Lou1, Y Liang, O Boyraz

  • 1Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Avenue, Ann Arbor, Michigan 48109-2122, USA. jwlou@engin.umich.edu

Applied Optics
|March 21, 2008
PubMed
Summary
This summary is machine-generated.

This study demonstrates an all-optical time-division-multiplexed (TDM) access node for 100-Gbit/s data packets. The node successfully adds, drops, and routes packets, showing potential for packet switching in multinode networks.

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Area of Science:

  • Photonics and Optical Communications
  • Telecommunications Engineering
  • Data Networking

Background:

  • All-optical networks offer high-speed data transmission.
  • Time-division multiplexing (TDM) is crucial for efficient data handling.
  • Packet switching is essential for flexible network configurations.

Purpose of the Study:

  • To experimentally demonstrate an all-optical TDM access node capable of handling 100-Gbit/s data packets.
  • To evaluate the node's performance in adding, dropping, and routing packets.
  • To assess the node's tolerance to timing jitter and signal variations.

Main Methods:

  • Utilized a looped-back all-optical TDM access node.
  • Employed nonlinear optical loop mirror (NOLM) technology for logic gates and demultiplexing.
  • Implemented self-synchronization techniques for incoming packets and local sources.
  • Used a phase-locked loop for synchronizing new packets to the network rate.

Main Results:

  • Achieved successful add, drop, and pass-through of 100-Gbit/s packets.
  • Demonstrated routing with a 17-dB contrast ratio and demultiplexing with a 20-dB contrast ratio.
  • Showcased timing jitter tolerance of approximately 5-5.5 ps for the header processor and demultiplexer.
  • Achieved a Q value of 7.1 for the header processor with 95% confidence.

Conclusions:

  • The all-optical TDM access node shows significant potential for packet switching in multinode ring networks.
  • The demonstrated technologies enable robust packet processing with tolerance to timing variations.
  • The system effectively synchronizes local sources and new packets, ensuring reliable network operation.