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Updated: Jul 31, 2025

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High resolution, high channel count silicon arrayed waveguide grating router on-chip.

Rui Huang, Yingxuan Zhao, Xiaojuan She

    Optics Express
    |May 9, 2023
    PubMed
    Summary

    This study demonstrates a compact silicon photonic arrayed waveguide grating router (AWGR) for dense wavelength division multiplexing (DWDM). The device achieves high-speed data routing with low insertion loss and crosstalk, suitable for advanced optical communication systems.

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    Area of Science:

    • Photonics and Optical Engineering
    • Integrated Optics
    • Semiconductor Devices

    Background:

    • Dense Wavelength Division Multiplexing (DWDM) is crucial for increasing optical communication capacity.
    • Arrayed Waveguide Grating Routers (AWGRs) are key components for DWDM systems.
    • Silicon photonics offers a scalable platform for integrated optical devices.

    Purpose of the Study:

    • To experimentally demonstrate a compact 32x32 silicon photonic integrated AWGR.
    • To evaluate the performance of the AWGR for DWDM applications.
    • To assess its suitability for high-speed data routing.

    Main Methods:

    • Fabrication of a silicon photonic integrated AWGR with specific dimensions.
    • Experimental characterization of channel loss, insertion loss, and crosstalk.

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    Last Updated: Jul 31, 2025

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  • Testing with 25 Gb/s signals to evaluate data routing capabilities.

    • Main Results:

    • A 32x32 AWGR with dimensions of 2.57 mm x 1.09 mm was successfully fabricated.
    • Achieved a best-case insertion loss of -1.66 dB and average channel crosstalk of -15.74 dB.
    • Demonstrated high-speed data routing at 25 Gb/s with clear optical eye diagrams and low power penalty.

    Conclusions:

    • The demonstrated silicon photonic AWGR is a viable component for DWDM systems.
    • The device exhibits excellent performance metrics, including low loss and crosstalk.
    • It is suitable for high-speed optical data routing applications in next-generation communication networks.