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Related Experiment Video

Updated: Jan 8, 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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Fully integrated hybrid multimode-multiwavelength photonic processor with picosecond latency.

Ahmed Khaled1, A Aadhi2,3, Chaoran Huang4

  • 1Department of Physics, Engineering Physics & Astronomy, Centre for Nanophotonics, Queen's University, Kingston, ON, Canada. 20ak41@queensu.ca.

Nature Communications
|December 18, 2025
PubMed
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This study introduces a hybrid photonic processor for high-speed signal processing, overcoming electronic limitations. It enables ultralow-latency data throughput for future communication systems.

Area of Science:

  • Photonics
  • Optical Signal Processing
  • Integrated Photonics

Background:

  • High-speed signal processing is vital for next-generation communication systems (MIMO, 6G).
  • Electronic processors face limitations in computational throughput and latency due to physical constraints.
  • Photonic processors offer advantages like high bandwidth and low latency but face integration and scalability challenges.

Purpose of the Study:

  • To present a scalable, monolithically integrated hybrid photonic processor.
  • To overcome the limitations of electronic processors for high-speed signal processing.
  • To enable ultralow-latency processing for future communication networks.

Main Methods:

  • Integration of adiabatic mode multiplexers, mode-selective microring resonators, and balanced multimode photodetectors on a single chip.

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Last Updated: Jan 8, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
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  • Simultaneous utilization of mode-division and wavelength-division multiplexing.
  • Demonstration of analog optical domain processing.

    • Main Results:

    • Experimental demonstration of real-time optical multiple-input multiple-output (MIMO) signal unscrambling at 5 Gb/s.
    • Successful radio frequency signal unjamming in phase-shift keying transmission.
    • Achieved processing latency of only 30 picoseconds.

    Conclusions:

    • The developed hybrid photonic processor offers a scalable solution for high-speed signal processing.
    • This technology paves the way for energy-efficient, ultralow-latency processors for wireless and optical networks.
    • The integrated approach overcomes previous scalability hurdles in photonic processing.