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On-chip CMOS-compatible all-optical integrator.

M Ferrera1, Y Park, L Razzari

  • 1Institut National de la Recherche Scientifique--Énergie, Matériaux et Télécommunications, 1650 Boulevard Lionel Boulet, Varennes, Québec, Canada J3X 1S2. ferreram@emt.inrs.ca

Nature Communications
|October 27, 2010
PubMed
Summary
This summary is machine-generated.

Researchers developed the first all-optical temporal integrator using a micro-ring resonator. This photonic device processes optical data at 200 GHz, paving the way for ultrafast computing and optical memory.

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Area of Science:

  • Photonics and Optical Engineering
  • Integrated Optics
  • All-Optical Computing

Background:

  • Electronic circuits face speed limitations.
  • Photonics lacks fundamental building blocks for complex circuits.
  • Ultrafast optical data processing is a key technological goal.

Purpose of the Study:

  • To report the first all-optical temporal integrator.
  • To demonstrate this integrator on a monolithic, integrated platform.
  • To enable new functionalities for optical computing.

Main Methods:

  • Utilized a passive micro-ring resonator as a lightwave 'capacitor-like' element.
  • Integrated the device onto a monolithic platform compatible with complementary metal-oxide semiconductor (CMOS) technology.
  • Characterized the device's performance for arbitrary optical waveforms.

Main Results:

  • Achieved time integration of complex optical fields.
  • Demonstrated a time resolution of a few picoseconds.
  • Obtained a processing speed of approximately 200 GHz.
  • Exhibited a 'hold' time approaching one nanosecond.

Conclusions:

  • The all-optical temporal integrator is a novel building block for photonics.
  • This device enables ultrafast optical data processing.
  • It is a key component for future optical memories and differential equation computing units.