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Proceedings Paper

Phase matched magnetooptic planar waveguide elaborated by magnetic nanoparticles embedded in an organic-inorganic sol-gel matrix
Author(s): F. Choueikani; F. Royer; D. Jamon; S. Neveu; J. Charara
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Paper Abstract

This paper presents a magnetooptical way to reduce the modal birefringence of planar waveguides, which is a critical point for applications. Indeed, composite material, made of Cobalt ferrite (CoFe2O4) nanoparticles embedded in a silica/zirconia matrix by the sol-gel method, are used to develop a phase matched magnetooptic planar waveguides. Such thin composite films coated on a pyrex slide using the dip-coating technique were studied. They were submitted to a UV-treatment, under an applied magnetic field. Two techniques were used to characterize these thin films: M-lines spectroscopy and Ellipsometry. Results show the dependence of the modal birefringence ΔN value as well as the TE-TM phase mismatch on the magnetic field orientation (in plane or out of plane) applied during the UV exposure phase. They prove that a phase match is achieved on a waveguide having a 1,5 refractive index and 1,8 μm of thickness, at 820 nm. Interpretations of these results, due to a linear permanent anisotropy led by the nanoparticles orientation in the film, are given.

Paper Details

Date Published: 1 May 2008
PDF: 9 pages
Proc. SPIE 6996, Silicon Photonics and Photonic Integrated Circuits, 69961L (1 May 2008); doi: 10.1117/12.781238
Show Author Affiliations
F. Choueikani, Univ. Jean Monnet (France)
F. Royer, Univ. Jean Monnet (France)
D. Jamon, Univ. Jean Monnet (France)
S. Neveu, Univ. Pierre et Marie Curie (France)
J. Charara, Univ. Libanaise (Lebanon)

Published in SPIE Proceedings Vol. 6996:
Silicon Photonics and Photonic Integrated Circuits
Giancarlo C. Righini; Seppo K. Honkanen; Lorenzo Pavesi; Laurent Vivien, Editor(s)

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