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Related Concept Videos

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Related Experiment Video

Updated: Feb 25, 2026

Writing Bragg Gratings in Multicore Fibers
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All-fiber few-mode multicore photonic lantern mode multiplexer.

Z Sanjabi Eznaveh, J E Antonio-Lopez, J C Alvarado Zacarias

    Optics Express
    |August 10, 2017
    PubMed
    Summary

    Researchers developed a new photonic lantern multiplexer for space division multiplexing (SDM) optical networks. This device enables 21 spatial channels in few-mode multicore fibers with low loss and crosstalk, paving the way for Petabit-class transmission.

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    Area of Science:

    • Optical communications
    • Photonics
    • Materials science

    Background:

    • Ultra-high capacity optical networks are crucial for modern data demands.
    • Space division multiplexing (SDM) offers a path to increased network capacity.
    • Novel components are needed to realize the full potential of SDM.

    Purpose of the Study:

    • To demonstrate an all-fiber mode selective photonic lantern multiplexer.
    • To enable efficient mode excitation in few-mode multicore fibers for SDM.
    • To develop scalable, low-loss components for unlocking fiber capacity.

    Main Methods:

    • Fabrication of an all-fiber mode selective photonic lantern.
    • Design for selective excitation of LP01, LP11a, and LP11b modes.
    • Integration with a seven-core fiber configuration.

    Main Results:

    • Achieved selective excitation of three modes (LP01, LP11a, LP11b).
    • Demonstrated 21 spatial channels in a seven-core fiber.
    • Reported core-to-core crosstalk below 38 dB and insertion loss below 0.4 dB.

    Conclusions:

    • The demonstrated multicore photonic lantern multiplexer is scalable for future SDM systems.
    • This device facilitates integration with ultra-high bandwidth few-mode multicore optical communication systems.
    • The component unlocks significant fiber capacity for next-generation networks.