Hybrid magneto-optical mode converter made with a magnetic nanoparticles-doped SiO2/ZrO2 layer coated on an ion-exchanged glass waveguide

Hadi Amata (1) , Francois Royer (2, 1) , Fadi Choueikani (3) , Damien Jamon (1, 2) , François Parsy (4) , Jean-Emmanuel Broquin (4) , Sophie Neveu (5) , Jean-Jacques Rousseau (1)

1 DIOM - Dispositifs et Instrumentation en Optoélectronique et micro-ondes
2 LHC - Laboratoire Hubert Curien
3 Laboratoire Charles Fabry de l'Institut d'Optique / Scop
4 IMEP - Institut de Microélectronique, Electromagnétisme et Photonique
5 LI2C - Liquides Ioniques et Interfaces Chargées

This paper describes the possibility to achieve a TE-TM mode conversion in a magneto-optical hybrid waveguide operating at k¼1550 nm. This hybrid device is made by coating a SiO2/ZrO2 layer doped with magnetic nanoparticles on an ion-exchanged glass waveguide. Soft annealing (90 C) and UV treatment, both compatible with the ion exchange process, have been implemented to finalize the magneto-optical film. Optical characterizations that have been carried out demonstrated the efficiency of these hybrid structures in terms of lateral confinement and mode conversion. Indeed, TE to TM mode conversion has been observed when a longitudinal magnetic field is applied to the device. The amount of this conversion is discussed taking into account the distribution of light between the layer and the guide, and the modal birefringence of the structure.

Domaines: Optique [physics.optics]

Hadi Amata, Francois Royer, Fadi Choueikani, Damien Jamon, François Parsy, et al.. Hybrid magneto-optical mode converter made with a magnetic nanoparticles-doped SiO2/ZrO2 layer coated on an ion-exchanged glass waveguide. Applied Physics Letters, 2011, 99, pp.251108. ⟨10.1063/1.3671180⟩. ⟨ujm-00692054⟩