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Method for characterizing poled-polymer waveguides for electro-optic integrated-optical-circuit applications.

J T Gallo, T Kimura, S Ura

    Optics Letters
    |October 6, 2009
    PubMed
    Summary
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    A new method accurately characterizes poled-polymer waveguides for electro-optic applications. It measures refractive index and estimates the electro-optic coefficient (r33) on a single sample for reliable integrated optical circuit development.

    Area of Science:

    • Materials Science
    • Optoelectronics
    • Polymer Chemistry

    Background:

    • Poled-polymer waveguides are crucial for electro-optic integrated-optical circuits.
    • Accurate characterization of material properties like refractive index and electro-optic coefficients is essential for device performance.
    • Existing methods may not ensure identical fabrication and poling conditions for all measurements.

    Purpose of the Study:

    • To propose a novel method for characterizing poled-polymer waveguides.
    • To enable measurement of refractive index before and after poling on a single sample.
    • To estimate the electro-optic coefficient, r(33), under consistent conditions.

    Main Methods:

    • Development of a characterization technique for poled-polymer waveguides.

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  • Measurement of waveguide refractive index pre- and post-poling.
  • Estimation of the electro-optic coefficient (r33) in adjacent sample areas.

    • Main Results:

    • The proposed method allows for precise refractive index determination before and after poling.
    • The technique facilitates the estimation of the electro-optic coefficient (r33).
    • Characterization was successfully demonstrated using the novel electro-optic-polymer 4-nitrophenylcarbamic acid polyvinyl ester.

    Conclusions:

    • The developed method provides a reliable way to characterize poled-polymer waveguides.
    • Ensuring identical fabrication and poling conditions enhances the accuracy of electro-optic coefficient measurements.
    • This technique is valuable for advancing electro-optic integrated-optical circuit applications.