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All-optical logic processing in a triangular symmetric three-core optical fiber coupler.

J P T Rodrigues, F L B Martins, V P P Júnior

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    Summary
    This summary is machine-generated.

    This study explores all-optical logic processing using a linear triangular symmetric three-core (TSTC) fiber coupler. Researchers demonstrated versatile logic devices without nonlinear effects, highlighting a simpler, scalable approach for photonic circuits.

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    Area of Science:

    • Photonics
    • Optical Computing
    • Fiber Optics

    Background:

    • All-optical logic processing research is limited, often relying on complex, costly nonlinear devices.
    • Existing nonlinear optical devices face challenges in scalability and integration into photonic circuits.

    Purpose of the Study:

    • To investigate the logic-processing capabilities of a linear, dispersion-free triangular symmetric three-core (TSTC) optical fiber coupler.
    • To demonstrate all-optical logic devices using a novel, linear fiber-based approach.

    Main Methods:

    • Utilized coupled-mode theory and a custom performance metric to analyze the TSTC fiber coupler.
    • Developed a model based on fiber design parameters to map logical operation regions.
    • Derived a threshold-line equation to define processing regimes.

    Main Results:

    • Successfully mapped all regions of logical operation within the TSTC coupler.
    • Demonstrated single-function, multi-function, and configurable all-optical logic devices.
    • Achieved logic operations without relying on nonlinear optical effects.

    Conclusions:

    • The linear TSTC fiber coupler offers a simple, scalable, and integrable solution for all-optical logic processing.
    • This approach avoids the complexities and costs associated with nonlinear devices.
    • Future work requires addressing design parameter sensitivity and experimental validation.