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Passivation of Organic-Inorganic Hybrid Sol–Gel

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Abstract

A passivation method for improving long-term stability of organic-inorganic sol–gel material is reported. The effect is observed in experiments with two different passivation materials: Teflon AF and SiO2. A regime of material curing prior to the passivation is found to strongly affect the optical loss. The degradation of waveguide loss with time due to moisture adsorption from the atmosphere is drastically suppressed by coating the material with a thin silica film. The results indicate a long-term optical loss below 0.3 dB/cm in coated waveguides, significantly smaller than that in uncoated waveguides. The mechanism of the loss reduction is described and experimentally confirmed.

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Authors and Affiliations

  1. Polaronyx, 562 East Weddell Drive, Suite 8, Sunnyvale, CA, 94089, USA

    Oleg V. Mishechkin

  2. Northrop Grumman Space Technology, Redondo Beach, California, USA

    Richard L. Davis

  3. University of Arizona, Optical Science Center, Tucson, Arizona, USA

    Li Fan, Dong Lu & Mahmoud Fallahi

Authors
  1. Oleg V. Mishechkin
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  2. Richard L. Davis
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  3. Li Fan
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  4. Dong Lu
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  5. Mahmoud Fallahi
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Corresponding author

Correspondence to Oleg V. Mishechkin.

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Mishechkin, O.V., Davis, R.L., Fan, L. et al. Passivation of Organic-Inorganic Hybrid Sol–Gel. J Sol-Gel Sci Technol 34, 47–51 (2005). https://doi.org/10.1007/s10971-005-1261-0

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  • DOI: https://doi.org/10.1007/s10971-005-1261-0

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