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Mise en œuvre et étude des techniques d'intégration de matériaux organiques en vue de la réalisation d'un modulateur électro-optique

Abstract : The need of opto-hyperfrequency hybrid devices for signal modulation in optical fiber and free space telecommunication networks has induced the development of non linear optical organic materials, which are rather promising in terms of performance, however, are limited in stability of its properties and thus in life time.
Objective of the present work was the characterization of the optical properties of the polymer PGMA-DR1 (PIII), as well as the study of material shaping and integration into a wave guiding structure in order to realize an electro-optic modulator.
Characterization of the chromophores' orientation in the PIII by second harmonic generation after cross-linking has shown the materials capacity to preserve its properties for at least one year. Shaping of the polymer into a linear monomode wave guide by conventional photolithography and reactive ion beam etching techniques, allowed to study the light guiding properties and resulted in an attenuation between 3 dB/cm and 10 dB/cm at 1.55 µm wavelength. Alternative polymer shaping techniques, using imprint lithography, were employed. Hot embossing and replica molding allow simplifying the realization technology. Finally, the possibility to realize in situ orientation of the chromophores during shaping of the material by poling in a parallel plate condenser geometry has been shown.
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https://tel.archives-ouvertes.fr/tel-00207610
Contributor : Sylvain Le Tacon <>
Submitted on : Wednesday, January 23, 2008 - 6:46:36 PM
Last modification on : Monday, October 19, 2020 - 11:00:52 AM
Long-term archiving on: : Tuesday, September 21, 2010 - 3:18:22 PM

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  • HAL Id : tel-00207610, version 2

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Sylvain Le Tacon. Mise en œuvre et étude des techniques d'intégration de matériaux organiques en vue de la réalisation d'un modulateur électro-optique. Matière Condensée [cond-mat]. Université de Nantes, 2007. Français. ⟨tel-00207610v2⟩

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