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Color image information transmission based on elliptic optical vortex array encoding/decoding.

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    This study introduces a novel optical data encoding and decoding method using composite elliptic optical vortex (EOV) arrays. This technique enables efficient, high-dimensional data transmission for advanced optical communication systems.

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    Area of Science:

    • Optics and Photonics
    • Information Technology
    • Computer Science

    Background:

    • High-dimensional data encoding and decoding are crucial for modern communication systems.
    • Existing optical communication methods face limitations in transmission efficiency and capacity.
    • Elliptic optical vortex (EOV) arrays offer potential for advanced optical data manipulation.

    Purpose of the Study:

    • To propose and demonstrate a multichannel high-dimensional data encoding/decoding scheme using composite EOV arrays.
    • To enhance optical data transmission efficiency by encoding multiple channels onto a single hologram.
    • To validate the scheme's feasibility through experimental transmission of a color image.

    Main Methods:

    • Utilized a 4x4 composite EOV array for high-dimensional data encoding based on rotation angles.
    • Employed conjugate symmetric extension Fourier computer-generated holography for controllable reconstruction focus across RGB channels.
    • Implemented a deep learning-based convolutional neural network for decoding intensity patterns at the receiver.

    Main Results:

    • Successfully encoded and transmitted a 128x128-pixel color image using the proposed scheme.
    • Demonstrated simultaneous transmission of RGB color image data through a single hologram.
    • Confirmed the feasibility and effectiveness of the EOV-based encoding/decoding approach.

    Conclusions:

    • The proposed composite EOV array-based scheme offers an efficient method for multichannel high-dimensional optical data transmission.
    • Deep learning-based decoding provides a robust approach for retrieving transmitted information.
    • This technology holds significant potential for future high-capacity optical communication applications.