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Direct ink writing 3D-printed optical waveguides for multi-layer interconnect.

Congkai Lin, Xingwang Jia, Chao Chen

    Optics Express
    |May 8, 2023
    PubMed
    Summary
    This summary is machine-generated.

    3D printing offers a low-cost method for creating optical waveguides for high-speed data communication. This direct ink writing technique fabricates polymer waveguides achieving error-free 30 Gb/s transmission, ideal for short-range optical interconnects.

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    Area of Science:

    • Materials Science
    • Optoelectronics
    • Manufacturing Engineering

    Background:

    • Short-range optical interconnects are crucial for high-speed data communications.
    • Traditional optical component manufacturing is complex and time-consuming.
    • 3D printing enables rapid fabrication of free-form optical components.

    Purpose of the Study:

    • To present a direct ink writing 3D-printing technology for fabricating optical waveguides.
    • To demonstrate the feasibility of 3D-printed waveguides for optical interconnects.
    • To evaluate the optical transmission performance and data handling capabilities of the fabricated waveguides.

    Main Methods:

    • Utilized direct ink writing 3D printing to fabricate optical waveguides.
    • Employed polymethylmethacrylate (PMMA) polymer for the waveguide core.
    • Fabricated high-density multilayer waveguide arrays with up to 144 channels.

    Main Results:

    • Achieved low propagation losses: 0.21 dB/cm (980 nm), 0.42 dB/cm (1310 nm), and 1.08 dB/cm (1550 nm).
    • Demonstrated a four-layer waveguide array with 144 channels.
    • Attained error-free data transmission at 30 Gb/s per channel.

    Conclusions:

    • Direct ink writing 3D printing is a viable, low-cost method for producing high-performance optical waveguides.
    • The fabricated waveguides exhibit excellent optical transmission, suitable for high-speed short-range optical interconnects.
    • This flexible and environmentally friendly technique holds significant potential for future optical communication applications.