Aller au menu Aller au contenu
Microelectronics, electromagnetism, photonics , microwave

> Events > PhD-Defenses

PhD Defense of Fabien GEOFFRAY

Published on January 21, 2015
A+Augmenter la taille du texteA-Réduire la taille du texteImprimer le documentEnvoyer cette page par mail Partagez cet article Facebook Twitter Linked In Google+ Viadeo
February 5, 2015 | Access map
Defense of a doctoral thesis of Fabien GEOFFRAY for the University of Grenoble, speciality Optical and  Radiofrequency entitled:
Amphitheater M001-Grenoble INP - Phelma
3 Parvis Louis Néel - CS 50257
38016 Grenoble Cedex 01

" Study and fabrication of high confinement glass ion-exchanged waveguides for nonlinear applications "

GEOFFRAY Fabien

GEOFFRAY Fabien

Thursday, Febroary 5, 2015 at  10:00

Abstract:
Glass integrated optics is a key enabling technology which applications range from optical telecommunications to sensors. The steady improvement of devices performances is sustained by an increasing functions density and thus smaller waveguides supporting higher power densities. In this work we investigate the ultimate performances in terms of confinement and propagation length of the silver/sodium ion-exchanged waveguides fabricated on glass technology. In particular, a trade-off between these two features has been highlighted in the case of nonlinear effects. We then demonstrate that the performances of silver/sodium ion-exchanged waveguides are mainly limited by optical losses introduced by metallic silver aggregates even for buried low-losses waveguides. Hence the waveguides exhibit a damage threshold for high power densities. To overcome this limitation a major technology change has been initiate and we present the first results obtained by thallium/sodium ion exchange.


Membres du jury :
Jean-Emmanuel BROQUIN - Supervisor
Lionel BASTARD - Co-supervisor
Daniel MILANESE - Rapporteur
Philippe SIGNORET - Rapporteur
Benoit BOULANGER - Examiner
Nathalie DESTOUCHES CASTAGNA - Examiner

A+Augmenter la taille du texteA-Réduire la taille du texteImprimer le documentEnvoyer cette page par mail Partagez cet article Facebook Twitter Linked In Google+ Viadeo

Partenaires

Thesis prepared in the laboratory  IMEP-LaHC supervised by M. BROQUIN Jean-Emmanuel  supervisor  and M. Lionel BASTARD co-supervisor.

Date of update February 6, 2015

Contact

M. Jean-Emmanuel BROQUIN
Envoyer un mail
French
IMEP-LAHC
Grenoble site
Grenoble INP - Minatec : 3, Parvis Louis Néel - CS 50257 - 38016 Grenoble Cedex 1

Chambéry site
Université de Savoie Mont Blanc - F73376 Le Bourget du Lac Cedex
 
 
  CNRS  http://www.cnrs.fr      Site Grenoble-INP http://www.grenoble-inp.fr       Université Grenoble Alpes (UGA)      Université Savoie Mont Blanc
Univ. Grenoble Alpes