Athermal High-Index-Contrast Waveguide Design

  title={Athermal High-Index-Contrast Waveguide Design},
  author={W. N. Ye and Jurgen Michel and L. C. Kimerling},
  journal={IEEE Photonics Technology Letters},
We present generalized design rules for athermal performance and materials compatibility in high-index-contrast (HIC) waveguides. Thermal stability of integrated photonic devices is one critical limitation in the development of commercially viable integrated optoelectronic circuits. Thermooptically neutral designs are achieved by choosing a cladding material whose thermooptic coefficient is opposite to that of the waveguide core. We derive analytical expressions of athermal conditions for both… CONTINUE READING
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