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Three-dimensional mode-division multiplexing system.

Hansi Ma, Te Du, Xinpeng Jiang

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    This summary is machine-generated.

    This study introduces a 16x16 3D mode division multiplexing (MDM) system to boost data capacity in photonic integrated circuits. The compact device enables 256 mode routes, overcoming single-layer limitations.

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    Area of Science:

    • Photonics
    • Integrated Optics
    • Optical Communications

    Background:

    • Single-layer mode (de)multiplexers face complexity challenges with increasing channels.
    • Three-dimensional (3D) mode division multiplexing (MDM) offers a solution for enhanced data capacity in photonic integrated circuits (PICs).

    Purpose of the Study:

    • To propose and demonstrate a compact 16x16 3D MDM system for advanced optical routing.
    • To extend the data capacity of PICs by utilizing 3D device architecture.

    Main Methods:

    • Design and simulation of a 16x16 3D MDM system with a footprint of approximately 100µm x 5.0µm x 3.7µm.
    • Mode conversion from fundamental transverse electric (TE0) modes to desired modes in arbitrary output waveguides.

    Main Results:

    • The proposed 3D MDM system achieves 256 mode routes.
    • Simulated results show insertion losses (ILs) below 3.5 dB and crosstalk (CTs) below -14.2 dB at 1550 nm.
    • Demonstrated mode-routing principle with TE0 mode conversion.

    Conclusions:

    • The 3D MDM architecture provides a scalable solution for complex optical networks.
    • This approach effectively increases data capacity in PICs while maintaining device simplicity.