Low-loss Ge-rich Si0.2 Ge0.8 waveguides for mid-infrared photonics

Joan-Manel Ramirez 1 Vladyslav Vakarin 1 Clement Gilles 2 Jacopo Frigerio 3 Andrea Ballabio 3 Papichaya Chaisakul 1 Xavier Le Roux 1 Carlos Alonso-Ramos 1 Gregory Maisons 2 Laurent Vivien 1 Mathieu Carras 2 Giovanni Isella 3 Delphine Marris-Morini 1
1 C2N - Centre de Nanosciences et de Nanotechnologies [Orsay]
2 MirSense
3 Politecnico di Milano [Milan]
Abstract : We demonstrate low-loss Ge-rich Si0.2Ge0.8 waveguides on Si1-xGex (x from 0 to 0.79) graded substrates operating in the mid-infrared wavelength range, at λ = 4.6 µm. Propagation losses as low as (1.5 ± 0.5) dB/cm and (2 ± 0.5) dB/cm were measured for the quasi-TE and quasi–TM polarizations, respectively. Total coupling loss (input/output) of only 10 dB was found for waveguide widths larger than 7 µm due to a good fiber-waveguide mode matching. Near-field optical mode profiles measured at the output waveguide facet allowed to inspect the optical mode and precisely measure the modal effective area of each waveguide providing a good correlation between experiments and simulations. These results put forward the potential of low-index-contrast Si1-xGex waveguides with high Ge concentration as fundamental blocks for mid-infrared photonic integrated circuits.
Keywords : integrated optics devices mid infrared photonics
Type de document :
Article dans une revue
Optics Letters, Optical Society of America, 2017, 〈10.1364/OL.42.000105〉
Liste complète des métadonnées

Littérature citée [51 références]  Voir  Masquer  Télécharger
https://hal.archives-ouvertes.fr/hal-01430021
Contributeur : Delphine Marris-Morini <>
Soumis le : lundi 9 janvier 2017 - 14:11:32
Dernière modification le : jeudi 11 janvier 2018 - 06:28:16
Document(s) archivé(s) le : lundi 10 avril 2017 - 14:54:45

Fichier

JMRamirez.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Collections

UNIV-PARIS-SACLAY

Citation

Joan-Manel Ramirez, Vladyslav Vakarin, Clement Gilles, Jacopo Frigerio, Andrea Ballabio, et al.. Low-loss Ge-rich Si0.2 Ge0.8 waveguides for mid-infrared photonics. Optics Letters, Optical Society of America, 2017, 〈10.1364/OL.42.000105〉. 〈hal-01430021〉

Exporter

BibTeX TEI DC DCterms EndNote

Partager

Métriques

Consultations de la notice

208

Téléchargements de fichiers

165

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD