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Externally mounted fibers for integrated optics interconnections.

D G Dalgoutte, R B Smith, G Achutaramayya

    Applied Optics
    |February 16, 2010
    PubMed
    Summary

    Researchers developed externally mounted fibers for efficient optical communication coupling. These novel waveguides achieve 70% efficiency in fiber-to-fiber and integrated optic connections, advancing optical systems.

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    Area of Science:

    • Optics
    • Photonics
    • Materials Science

    Background:

    • Input-output coupling is critical for fiber and integrated optics communication systems.
    • Existing coupling methods face challenges in efficiency and integration.

    Purpose of the Study:

    • To present a novel externally mounted fiber design for improved optical coupling.
    • To analyze the coupling efficiency of tapered (crossed-beta) couplers.
    • To demonstrate experimental validation of the proposed fiber design.

    Main Methods:

    • Fabrication of externally mounted fibers with a high-index rectangular waveguide on a low-index support fiber.
    • Theoretical analysis and presentation of a simple expression for coupling efficiency.
    • Experimental testing of fiber-fiber and integrated optic linear waveguide-fiber coupling.

    Main Results:

    • Experimental efficiencies of 70% achieved for fiber-fiber coupling.
    • Experimental efficiencies of 70% achieved for integrated optic linear waveguide-fiber coupling.
    • Successful fabrication of externally mounted fibers demonstrating practical application.

    Conclusions:

    • Externally mounted fibers offer a viable solution for efficient optical coupling.
    • The proposed design and analysis provide a pathway for enhancing optical communication systems.
    • Achieved efficiencies indicate significant potential for practical implementation in fiber and integrated optics.