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Performance evaluation of plastic optical fiber communication using micro-lens coupling and computational temporal

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    PubMed
    Summary

    This study introduces a new method using computational temporal ghost imaging (CTGI) to improve plastic optical fiber communication (POFC) systems. The technique enhances signal quality and coupling efficiency for faster, more reliable data transmission.

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    Area of Science:

    • Optoelectronics
    • Optical Communications
    • Signal Processing

    Background:

    • Plastic optical fiber communication (POFC) systems face challenges with signal performance and power budget limitations.
    • Multi-level pulse amplitude modulation (PAM-M) is used in POFC, but is susceptible to distortions.

    Purpose of the Study:

    • To propose a novel scheme to enhance bit-error-ratio (BER) performance and coupling efficiency in PAM-M based POFC systems.
    • To develop and apply the computational temporal ghost imaging (CTGI) algorithm for PAM4 modulation in POFC.

    Main Methods:

    • Developed the computational temporal ghost imaging (CTGI) algorithm for PAM4 modulation.
    • Optimized the modulation basis for CTGI algorithm.
    • Integrated micro-lenses using a ball-burning technique to enhance coupling efficiency.

    Main Results:

    • CTGI algorithm demonstrated enhanced BER performance and clearer eye diagrams in simulations.
    • Experimental results showed a BER improvement from 2.2 × 10⁻² to 8.4 × 10⁻⁴ for 180 Mb/s PAM4 signals over 10 m POF.
    • Coupling efficiency increased from 28.64% to 70.61% with the addition of micro-lenses.

    Conclusions:

    • The proposed CTGI scheme is effective in improving BER performance for POFC systems.
    • The integration of micro-lenses significantly boosts coupling efficiency.
    • The combined approach offers a feasible solution for cost-effective, high-speed, short-reach POFC systems.