Microfibres for nonlinear optics
type: Dataset
description: In this thesis, I present my works on the fabrication, the characterization and the use of optical microfibres. Microfibres are optical fibres drawn down to sub-wavelength diameters by a temperature controlled process. Due to their small dimensions, microfibers have very special properties such as a high confinement of the electromagnetic field, a enhanced non-linear coefficient and a large evanescent tail. These properties are studied in the first chapter, after which a description of the techniques used for the drawing and manipulation of the microfibres is given. Next, we present our experiments on non-linear effects in silica microfibres. In particular, we show that it is possible to generate green light with a pump at 1:55μm thanks to phase-matched third harmonic generation. In order to obtain higher efficiency in this field, the opportunity of drawing microfibres with highly non-linear glasses is discussed. A model of a microfibre laser using erbium doped tellurite glass is also presented. In the last chapter, microfibres are studied in the near field, with a scanning near field optical microscope, revealing the inner characteristics of the propagation in microfibres.
identifier: NNT: 2011DIJOS032
issued: 2026-05-20T13:53:36.954797
language: fr
modified: 2026-05-20T13:53:36.954804
contact point: Organization
  fn: CCSD
keyword: champ-proche
keyword: dispositifs-optiques
keyword: infoeu-reposemanticsdoctoralthesis
keyword: micro-optique
keyword: microfibres
keyword: no-english-keywords
keyword: non-lineaire
keyword: optique-guidee
keyword: physcondcm-genphysics-physicscondensed-matter-cond-matother-cond-matother
keyword: spiotherengineering-sciences-physicsother
keyword: theses
landing page: https://theses.hal.science/tel-00692071

Microfibres for nonlinear optics
type: Distribution
format: HTML
issued: 2026-05-20T13:53:36.967614
modified: 2026-05-20T13:53:36.920474
access URL: https://theses.hal.science/tel-00692071

test_moissonnage_selune
type: Agent