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Related Experiment Video

Updated: Jun 11, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

Optical signal processing on a silicon chip at 640Gb/s using slow-light.

B Corcoran1, C Monat, M Pelusi

  • 1Institute for Photonics and Optical Sciences (IPOS), Centre for Ultra-high Bandwidth Devices for Optical Systems (CUDOS), School of Physics, University of Sydney, New South Wales 2006 Australia.

Optics Express
|July 1, 2010
PubMed
Summary

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Researchers achieved record speeds for silicon optical devices using slow-light enhanced third harmonic generation (THG). This breakthrough enables ultra-high bandwidth telecommunications by enhancing optical signal monitoring at 640Gb/s and beyond.

Area of Science:

  • Photonics
  • Materials Science
  • Telecommunications Engineering

Background:

  • Optical performance monitoring is crucial for high-speed telecommunication systems.
  • Silicon photonic crystal waveguides offer potential for compact and efficient optical signal processing.
  • Slow-light phenomena can enhance nonlinear optical processes.

Purpose of the Study:

  • To demonstrate optical performance monitoring using slow-light enhanced third harmonic generation (THG).
  • To evaluate the device's performance at various bit rates, including 40Gb/s, 160Gb/s, and 640Gb/s.
  • To assess the potential for ultra-high bandwidth telecommunications.

Main Methods:

  • Utilizing a compact, dispersion-engineered 2D silicon photonic crystal waveguide.
  • Employing slow-light enhanced optical third harmonic generation (THG) for signal monitoring.

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Related Experiment Videos

Last Updated: Jun 11, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
09:03

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

Published on: January 7, 2019

  • Testing performance across a range of bit rates from 40Gb/s to 640Gb/s.

    • Main Results:

    • Successful optical performance monitoring of in-band optical signal to noise ratio (OSNR) and residual dispersion.
    • Demonstrated no intrinsic degradation in signal processing enhancement at 640Gb/s compared to 40Gb/s.
    • Achieved a record 16-fold increase in processing speed for a silicon device, with potential for operation above 1Tb/s.

    Conclusions:

    • Slow-light enhanced THG in silicon photonic crystals is a viable method for optical performance monitoring.
    • The demonstrated device shows promise for enabling ultra-high bandwidth telecommunications systems.
    • This technology opens new avenues for slow light applications in future communication networks.