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Related Experiment Video

Updated: Nov 21, 2025

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
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Compact silicon-photonic mode-division (de)multiplexer using waveguide-wrapped microdisk resonators.

Dusan Gostimirovic, Winnie N Ye

    Optics Letters
    |January 15, 2021
    PubMed
    Summary

    Researchers developed the first microdisk-based silicon-photonic mode-division (de)multiplexer circuit. This compact device enables high-bandwidth, low-energy on-chip optical communications by supporting numerous data channels.

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    Area of Science:

    • Photonics
    • Optical Communications
    • Integrated Optics

    Background:

    • On-chip optical communication systems require efficient multiplexing and demultiplexing components.
    • Existing solutions often face limitations in bandwidth, footprint, or energy efficiency.

    Purpose of the Study:

    • To demonstrate the first microdisk-based silicon-photonic mode-division (de)multiplexer circuit.
    • To achieve high aggregate bandwidth and low energy consumption for on-chip optical communications.

    Main Methods:

    • Utilizing waveguide-wrapped microdisk resonators for mode (de)multiplexing.
    • Integrating vertically oriented depletion-type pn junctions for modulation.

    Main Results:

    • Achieved low intermodal crosstalk and insertion loss.

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  • Demonstrated an ultracompact footprint and an increased free spectral range.
  • Enabled 530 combined data channels with subfemtojoule-per-bit modulation efficiencies.

    • Conclusions:

    • The microdisk-based mode-division (de)multiplexer offers a promising solution for next-generation data processing and communication.
    • The device's high modulation efficiency, compactness, and wide free spectral range pave the way for higher bandwidth and lower energy consumption.