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Related Experiment Video

Updated: Jun 11, 2026

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Variable-ratio tap for plastic optical fiber.

M Kagami, Y Sakai, H Okada

    Applied Optics
    |June 29, 2010
    PubMed
    Summary
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    Researchers developed a variable-ratio tap using plastic optical fibers. Bending the fiber converts core modes to cladding modes, enabling signal extraction for optical communication applications.

    Area of Science:

    • Optoelectronics
    • Fiber Optics

    Background:

    • Plastic optical fibers (POFs) offer cost-effective solutions for optical communication.
    • Mode conversion in optical fibers is crucial for signal manipulation and sensing.

    Purpose of the Study:

    • To develop a variable-ratio tap using plastic optical fibers.
    • To investigate the transmission characteristics of this novel optical tap.

    Main Methods:

    • A variable-ratio tap was fabricated by altering the bending radius of a plastic optical fiber.
    • Ray tracing technique was employed to analyze quasiskew rays in a multimode fiber.
    • Core mode to cladding mode conversion was utilized for signal extraction.

    Main Results:

    • Bending a plastic optical fiber to a small radius effectively converts core modes into cladding modes.

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  • The transmission characteristics of the variable-ratio tap were successfully investigated.
  • Extraction of cladding modes was demonstrated using a material with a suitable refractive index.

    • Conclusions:

    • The developed variable-ratio tap offers a novel method for optical signal tapping in plastic optical fiber systems.
    • The study validates the principle of mode conversion for tap design.
    • This technique holds potential for applications in optical sensing and communication.