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    Area of Science:

    • Optics and Photonics
    • Computer Engineering
    • Materials Science

    Background:

    • Optical interconnects are crucial for high-speed data communication.
    • Spatial light modulators (SLMs) offer reconfigurable optical routing capabilities.
    • Holographic methods provide a pathway for complex optical interconnections.

    Purpose of the Study:

    • To design and implement dynamic interconnect holograms for optical switching applications.
    • To demonstrate the capability of these holograms in achieving high-isolation crossbar switches.
    • To explore the scalability of holographic interconnects for multi-point fan-out.

    Main Methods:

    • Utilized a simulated annealing algorithm for hologram design.
    • Employed a ferroelectric spatial light modulator (SLM) in binary-phase mode.
    • Transferred hologram images to an optically addressed SLM for replication and enhancement.

    Main Results:

    • Achieved a 2x2 crossbar switch with up to 27 dB isolation.
    • Demonstrated arbitrary fan-out to 64 points with good performance.
    • Successfully replicated hologram images to create larger holograms with high space-bandwidth product.

    Conclusions:

    • Dynamic interconnect holograms are effective for reconfigurable optical switching.
    • The demonstrated methods show promise for scalable and high-performance photonic interconnects.
    • Further experimental validation is ongoing to confirm the system's capabilities.