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Electro optic nanocomposites for high performance microwave photonic applications

Abstract : Great interest is devoted to electro-optic (EO) polymers since they allow the fabrication of very high performance microwave photonic components, such as optical modulators and analog-to-digital converters, due to a much better velocity matching between microwave and optical signal as well as a higher EO coefficient than the very popular inorganic LiNbO3 material. This paper studies the influence of nanoparticle loading on optical properties of EO polymers. We are interested in the host-guest system. A proof of concept is investigated by using a polymer matrix in which we add Disperse Red One (DR1) chromophores. Our first investigations are realized with TiO2 nanoparticles, which are transparent at the telecommunications wavelength of 1.55 μm. The m-lines technique allows measuring the refractive index of the films. As expected, the refractive index increases when weight-weight percentage of DR1 to PMMA increases from 3.5 wt.% to 14 wt.%. The refractive index increase tends to saturate at high DR1 percentages, which suggests that DR1 aggregation occurs. By adding TiO2 nanoparticles, a further increase is observed that we discuss by considering both the refractive index of TiO2 and the possibility to decrease the DR1 aggregation.
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Contributor : Sandrine Charlier Connect in order to contact the contributor
Submitted on : Thursday, January 21, 2021 - 9:10:22 AM
Last modification on : Sunday, November 27, 2022 - 6:52:45 AM


  • HAL Id : hal-03117262, version 1


Zahraa Jradi, Mohammed El Gibari, Hong Wu Li, Olivier Chauvet. Electro optic nanocomposites for high performance microwave photonic applications. 28th Telecommunications Forum TELFOR 2020, Nov 2020, Belgrade (Fully online event), Serbia. ⟨hal-03117262⟩



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