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New Inorganic-Organic Hybrid Polymers for Integrated Optics

Published online by Cambridge University Press:  10 February 2011

Christof Roscher ,
Ralf Buestrich ,
Peter Dannberg ,
Oliver Rösch  and
Michael Popall
Christof Roscher
Affiliation:
Fraunhofer-Institut für Silicatforschung, D-97082 Würzburg, Germany
Ralf Buestrich
Affiliation:
Fraunhofer-Institut für Silicatforschung, D-97082 Würzburg, Germany
Peter Dannberg
Affiliation:
Fraunhofer-Institut für Angewandte Optik und Feinmechanik, D-07745 Jena, Germany
Oliver Rösch
Affiliation:
Robert Bosch GmbH, FV/FLD, P.O.B. 106050, D-70049 Stuttgart, Germany
Michael Popall
Affiliation:
Fraunhofer-Institut für Silicatforschung, D-97082 Würzburg, Germany
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Abstract

New fluorinated inorganic-organic hybrid polymers (ORMOCER*s) for integrated optics were synthesized via hydrolysis and condensation (sol-gel processing) of functionalized pentafluorophenylalkoxysi lanes followed by organic crosslinking reactions. Process parameters (catalyst, temperature and ratio of educts) were optimized to achieve low transmission losses at the most important wavelengths for telecommunication in the NIR range: 1310 nm and 1550 nm.

The result is a photopatternable transparent ORMOCER (negative resist behavior) with excellent low losses: 0.20 dB/cm at 1310 nm and 0.30 dB/cm at 1550 nm.

Besides their high transparency the fluorinated ORMOCERs show a variety of other properties enabling their use as waveguide materials within the production of optoelectronic devices and related thin film technology: good wetting and adhesion on various substrates (e.g. glass, silicon and several polymers), low processing temperatures (postbake below 160 °C), high thermal stability (decomposition > 250°C) and a tunable refractive index.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 519: Symposium O – Organic/Inorganic Hybrid Materials , 1998 , 239
Copyright
Copyright © Materials Research Society 1998

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