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Related Concept Videos

Mesh Analysis for AC Circuits01:12

Mesh Analysis for AC Circuits

In the domain of radio communication, the significance of impedance matching must be considered. It is crucial to ensure the efficient transmission of signals between radio transmitters and receivers. Achieving this balance involves using impedance-matching circuits, with one fundamental configuration comprising a resistor, capacitor, and inductor.
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Published on: March 19, 2016

High efficiency input-output prism waveguide coupler: an analysis.

D Sarid

    Applied Optics
    |March 10, 2010
    PubMed
    Summary
    This summary is machine-generated.

    This study presents a prism waveguide coupler achieving 94% efficiency for optical signal input and output. The device utilizes a single prism with light propagating in a lithium niobate waveguide.

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    Area of Science:

    • Photonics and Waveguide Technology
    • Integrated Optics
    • Materials Science (Lithium Niobate)

    Background:

    • Efficient coupling of light into and out of optical waveguides is crucial for integrated photonic devices.
    • Prism-based couplers are a common method, but optimizing efficiency and practicality remains an area of research.

    Purpose of the Study:

    • To present the theory and experimental performance of a novel prism waveguide input-output coupler.
    • To demonstrate a high-efficiency coupling scheme using a single prism for both input and output.
    • To evaluate the performance in a specific material system, Lithium Niobate (LiNbO3).

    Main Methods:

    • Theoretical modeling of the prism waveguide coupling mechanism.
    • Experimental fabrication and testing of the coupler.
    • Utilizing Titanium (Ti) diffused waveguides in LiNbO3 substrates.
    • Measuring coupling efficiency with light propagating 1 cm within the waveguide.

    Main Results:

    • Achieved a high coupling efficiency of 94%.
    • Demonstrated the effectiveness of a single prism for both input and output coupling.
    • Validated the performance with Ti-in-diffused LiNbO3 waveguides.

    Conclusions:

    • The presented prism waveguide coupler offers a highly efficient solution for optical signal interfacing.
    • The single-prism design simplifies device architecture while maintaining excellent performance.
    • This technology holds promise for advanced integrated photonic applications.