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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
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Advanced root mean square propagation with the warm-up algorithm for fiber coupling.

Ziqiang Li, Ziting Pan, Yuting Li

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    |July 21, 2023
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    Summary
    This summary is machine-generated.

    A new algorithm, advanced root mean square propagation with warm-up (ARW), improves fiber coupling efficiency. The ARW algorithm enhances performance in free-space optical communication by reducing iterations and expanding the effective range.

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    Area of Science:

    • Optical engineering
    • Photonics
    • Signal processing

    Background:

    • Fiber coupling is crucial for optical communication and interferometry.
    • Turbulence and vibrations degrade coupling efficiency, necessitating dynamic optimization algorithms.

    Purpose of the Study:

    • To introduce the advanced root mean square propagation with warm-up (ARW) algorithm.
    • To enhance the effective range and mitigate sudden disturbances in fiber coupling systems.

    Main Methods:

    • The ARW algorithm adaptively adjusts gain and perturbation rates with warm-up operations.
    • Comparative analysis with the standard proportional-gradient descent (SPGD) algorithm.

    Main Results:

    • The ARW algorithm achieved comparable steady-state coupling efficiency with a significantly reduced iteration count (36.4% of SPGD).
    • The ARW algorithm demonstrated a 20% increase in effective range (530.50µrad) compared to SPGD on the tested platform.

    Conclusions:

    • The ARW algorithm offers a superior solution for dynamic fiber coupling, improving robustness against disturbances.
    • The proposed method expands the operational range of fiber coupling systems, benefiting applications like free-space optical communication.