Search results for "Verres de tellurites"

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Fibres optiques à coeur supendu en verre d'oxyde de tellure et génération d'effets non linéaires dans l'infrarouge au-delà de 2 microns

2012

The work reported in this thesis deals with the fabrication of suspended core tellurite microstructured optical fibers (MOFs) for supercontinuum generation beyond 2 µm. In order to reach our aim, we first studied thermal and optical properties of TeO2-ZnO-R2O and TeO2-WO3-R2O (where R = Li, Na and K) glasses. The glass 80TeO2-10ZnO-10Na2O (molar %) has been chosen in order to make MOFs for characterization of the generated non linear optical effects. Synthesis performed under dry and oxidative atmosphere allowed us to reduce the hydroxyl groups concentration by a factor of 30 compared to fabrication in air atmosphere. Use of dehydrating agents (ZnF2 and TeCl4) allowed to reduce again the OH…

Microstructured optical fibers[SPI.OTHER]Engineering Sciences [physics]/OtherTellurite glasses[ SPI.OTHER ] Engineering Sciences [physics]/OtherNon-linéarités optiques[SPI.OTHER] Engineering Sciences [physics]/Other[CHIM.OTHE] Chemical Sciences/Other[ CHIM.OTHE ] Chemical Sciences/OtherOptical non linearitiesFibres optiques microstructuréesVerres de telluritesSupercontinuum[CHIM.OTHE]Chemical Sciences/Other
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