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Related Experiment Video

Updated: May 16, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

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Compact hybrid plasmonic polarization rotator.

J Niklas Caspers1, M Z Alam, Mo Mojahedi

  • 1Department of Electrical and Computer Engineering and Institute for Optical Sciences, University of Toronto, 10 King’s College Rd., Toronto, Ontario M5S 3G4, Canada. n.caspers@utoronto.ca

Optics Letters
|November 21, 2012
PubMed
Summary

We developed a tiny hybrid plasmonic polarization rotator for silicon photonics. This device efficiently rotates light polarization in integrated circuits with minimal signal loss.

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Area of Science:

  • Photonics
  • Nanotechnology
  • Integrated Optics

Background:

  • Silicon photonics enables optical integrated circuits.
  • Polarization control is crucial for silicon photonic devices.
  • Existing polarization rotators can be bulky or inefficient.

Purpose of the Study:

  • To propose a novel ultracompact hybrid plasmonic polarization rotator.
  • To enable efficient polarization rotation in integrated silicon photonic circuits.
  • To achieve high performance at telecommunication wavelengths.

Main Methods:

  • Design and fabrication of a hybrid plasmonic structure.
  • Integration with silicon waveguides.
  • Characterization of polarization rotation performance.

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Main Results:

  • An ultracompact rotator with a footprint of 5 μm was achieved.
  • A polarization extinction ratio exceeding 14 dB was demonstrated.
  • Low total insertion losses of 2.1 dB were recorded.

Conclusions:

  • The proposed device offers a compact and efficient solution for polarization control in silicon photonics.
  • This technology is suitable for advanced integrated photonic applications.
  • The hybrid plasmonic approach provides a pathway for miniaturizing photonic components.