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Related Experiment Video

Updated: Sep 15, 2025

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

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Exploring 400 Gbps/λ and beyond with AI-accelerated silicon photonic slow-light technology.

Changhao Han1,2, Qipeng Yang1, Jun Qin3

  • 1State Key Laboratory of Photonics and Communications, School of Electronics, Peking University, Beijing, China.

Nature Communications
|July 16, 2025
PubMed

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Summary

Artificial intelligence (AI) accelerates silicon photonics for ultrahigh-speed optical interconnections. This AI-driven slow-light technology enables 400 Gbps/λ transmission, overcoming silicon modulator limitations.

Area of Science:

  • Photonics
  • Optical Communications
  • Artificial Intelligence

Background:

  • Silicon photonics offers cost-effective, large-scale optical interconnection solutions.
  • Pure silicon modulators face efficiency-bandwidth trade-offs and nonlinear distortions, limiting ultrahigh-speed applications.
  • Overcoming these limitations is crucial for next-generation optical interfaces.

Purpose of the Study:

  • To develop an AI-accelerated silicon photonic slow-light technology for data transmission beyond 400 Gbps/λ.
  • To demonstrate enhanced data capacity and transmission rates in silicon photonic systems.
  • To explore the potential of AI in optimizing silicon photonic devices for computing centers.

Main Methods:

  • Utilized artificial neural networks (ANNs) to accelerate silicon photonic slow-light technology.

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Last Updated: Sep 15, 2025

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

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Published on: November 30, 2012

19.1K
Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
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Published on: April 4, 2017

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  • Designed and implemented an 8-channel wavelength-division-multiplexed (WDM) silicon slow-light modulator chip.
  • Incorporated a thermal-insensitive structure for stable performance.
  • Demonstrated single-lane 400 Gbps Pulse Amplitude Modulation with 4 levels (PAM-4) transmission.

    • Main Results:

    • Achieved a total data capacity of 3.2 Tbps using the 8-channel WDM chip.
    • Attained an on-chip data-rate density of 1.6 Tb/s/mm².
    • Successfully demonstrated single-lane 400 Gbps PAM-4 transmission.
    • Showcased the potential of standard silicon photonic platforms for advanced optical interfaces.

    Conclusions:

    • AI-accelerated slow-light technology significantly enhances silicon photonics transmission rates.
    • The developed technology overcomes previous limitations of silicon modulators for ultrahigh-speed scenarios.
    • This approach paves the way for self-optimizing optical interfaces integrated with AI and computing centers.