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Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
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Optical loss study of MPEOU-based polyceram planar waveguides.

S Motakef, J M Boulton, R L Roncone

    Applied Optics
    |October 22, 2010
    PubMed
    Summary

    Sol-gel polyceram materials offer low optical loss and high refractive indices for planar waveguides. Their properties are tunable via processing and composition, enabling easy fabrication of advanced optical devices.

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    Area of Science:

    • Materials Science
    • Optoelectronics
    • Ceramic Engineering

    Background:

    • Sol-gel processing allows for the synthesis of advanced ceramic materials.
    • Organically modified silicon and titanium alkoxides are precursors for novel polyceram synthesis.
    • Planar waveguides require materials with specific optical properties and processing characteristics.

    Purpose of the Study:

    • To synthesize sol-gel derived polyceram materials in planar waveguide forms.
    • To investigate the optical properties (refractive index, loss, dispersion) of these materials.
    • To understand the influence of processing and composition on material properties and homogeneity.

    Main Methods:

    • Sol-gel synthesis using organically modified silicon and titanium alkoxides.

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  • Fabrication of planar waveguide structures.
  • Optical characterization including refractive index, optical loss, and dispersion measurements.
  • Analysis of film homogeneity and surface roughness.

    • Main Results:

    • Achieved optical losses below 0.25 dB/cm.
    • Obtained high refractive indices up to 1.685.
    • Demonstrated exceptional ease of processing for the synthesized polyceram films.
    • Correlated optical properties with processing parameters and chemical composition.

    Conclusions:

    • Sol-gel derived polyceram materials are suitable for planar waveguide applications.
    • Processing and composition control are key to tailoring optical properties.
    • These materials offer a promising combination of optical performance and fabrication simplicity.