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Related Experiment Video

Updated: Jun 24, 2026

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Photonic integrated circuit optical buffer for packet-switched networks.

Emily F Burmeister1, John P Mack, Henrik N Poulsen

  • 1Electrical and Computer Engineering Department, University of California at Santa Barbara, California 93106-9560, USA. eburmeis@umail.ucsb.edu

Optics Express
|April 15, 2009
PubMed
Summary

A novel chip-scale optical buffer autonomously resolves data packet contention with 99% recovery. This photonic chip buffer utilizes an InP optical switch and a low-loss delay loop for high-speed data streams.

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Area of Science:

  • Photonics and Optical Engineering
  • Telecommunications
  • Computer Engineering

Background:

  • Data traffic congestion is a major bottleneck in high-speed optical networks.
  • Existing optical buffer solutions face challenges in scalability and efficiency.
  • Autonomous contention resolution is crucial for future network performance.

Purpose of the Study:

  • To develop and demonstrate a chip-scale optical buffer for autonomous packet contention resolution.
  • To evaluate the performance of the optical buffer in terms of packet recovery and storage capacity.
  • To explore the potential of integrated photonic devices in next-generation communication systems.

Main Methods:

  • Fabrication of a compact optical buffer using Indium Phosphide (InP) and silica-on-silicon technologies.

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Last Updated: Jun 24, 2026

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
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  • Integration of a 2x2 optical switch with a low-loss delay loop for packet storage.
  • Testing the buffer in recirculating and feed-forward configurations for 40-byte packets at 40 Gb/s.

    • Main Results:

    • Achieved 99% packet recovery in autonomous contention resolution for 40-byte packets.
    • Demonstrated packet storage up to 64.3 ns (five times the base delay) with 98% recovery in recirculating mode.
    • Successfully resolved contention between two 40 Gb/s packet streams using multiple photonic chip optical buffers.

    Conclusions:

    • The chip-scale optical buffer effectively resolves contention in high-speed packet streams.
    • The demonstrated photonic integrated solution offers a promising approach for efficient optical buffering.
    • This technology has the potential to significantly enhance the performance of optical networks.