0000000000309243

AUTHOR

Jerome Hauden

showing 2 related works from this author

Z+/Z− lithium niobate optical waveguide sensitivity related to pyroelectric effect

2020

Lithium niobate crystal is widely used for the design and fabrication of integrated electro-optic modulators. As a ferroelectric material, one sees its spontaneous polarization change with temperature variations. This phenomenon, known as the pyroelectric effect, induces strong waveguide transmission variations for waveguides realized on Z -cut wafers. Waveguides made by titanium in-diffusion either on the Z + or Z − side of the crystal show a significant difference in temperature behavior. Experimental data, enlightened by numerical simulations, help to show why Z − waveguides are more immune to temperature changes than Z + ones.

Materials scienceFabricationbusiness.industryLithium niobatePhysics::Optics01 natural sciencesFerroelectricityWaveguide (optics)Atomic and Molecular Physics and OpticsPyroelectricity010309 opticsCrystalCondensed Matter::Materials Sciencechemistry.chemical_compoundOpticschemistry0103 physical sciencesLight beamWaferElectrical and Electronic EngineeringbusinessEngineering (miscellaneous)Applied Optics
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Microsystèmes intégrés en niobate de lithium

2019

Le niobate de lithium (LiNbO3) suscite un vif intérêt en photonique depuis des décennies en raison de ses fortes propriétés électro-optiques et non-linéaires. L’opportunité récente de l’usiner en couches minces a élargi le spectre des applications déjà nombreuses du matériau. Les enjeux actuels concernent la miniaturisation des composants tout en préservant de faibles pertes optiques.

[SPI]Engineering Sciences [physics]ComputingMilieux_MISCELLANEOUS
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