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Spatial-spectral holographic real-time correlative optical processor with >100  Gb/s throughput.

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    This study demonstrates an all-optical, ultra-high-speed signal correlator using spatial-spectral holography (SSH). This technology achieves teraflop-scale processing for high-bandwidth signal analysis with minimal latency.

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    Area of Science:

    • Optics and Photonics
    • Signal Processing
    • Holography

    Background:

    • Traditional signal processing methods face limitations in handling ultra-high bandwidths.
    • Spatial-Spectral Holographic (SSH) technology offers a novel approach for optical signal processing.

    Purpose of the Study:

    • To demonstrate a fully programmable, all-optical, time-domain signal correlator.
    • To showcase the capabilities of SSH technology for high-speed signal correlation.

    Main Methods:

    • Development of an all-optical signal correlator utilizing spatial-spectral holographic (SSH) technology.
    • Experimental validation using phase-shift keyed modulation formats for digital and analog correlation.
    • Integration of improved photonic components and cryogenic SSH for enhanced performance.

    Main Results:

    • Demonstrated asynchronous and continuous operation on signals up to 32 GHz bandwidth.
    • Achieved a time-bandwidth product exceeding 10^4, equivalent to teraflop-scale processing.
    • Showcased correlation of plain text ASCII data at 200 Gbps with minimal latency.

    Conclusions:

    • The developed SSH signal correlator enables ultra-high-speed, low-latency signal processing.
    • The technology holds potential for applications in high-bandwidth analog and multi-level signal analysis.
    • Advancements in photonic components and cryogenic SSH are key enablers for these high-performance demonstrations.