Title :
Fabrication of optical planar waveguides in KY(WO4)2 by He-ion implantation
Author :
Borca, C.N. ; Zäh, F. ; Schnider, C. ; Salathé, R.P. ; Pollnau, M. ; Moretti, P.
Author_Institution :
Adv. Photonics Lab., Ecole Polytech. Fed. de Lausanne, Switzerland
Abstract :
In this paper, planar waveguides produced by He-ion implantation have been demonstrated in undoped and Yb-doped KY(WO4)2 crystals. The effective refractive indices of guided modes in surface planar waveguides were measured by dark m-line spectroscopy and the refractive index profiles were reconstructed by calculations based on the inverse WKB method. The end-faces of implanted crystals were polished and the waveguiding properties of the obtained planar structures were investigated using a laser diode at 980 nm and a CCD camera.
Keywords :
CCD image sensors; WKB calculations; helium ions; ion implantation; measurement by laser beam; optical fabrication; optical materials; optical planar waveguides; polishing; potassium compounds; refractive index; ytterbium; yttrium compounds; 980 nm; CCD camera; He; He-ion implantation; KY(WO4)2; KY(WO4)2:Yb; dark m-line spectroscopy; effective refractive index profile; inverse WKB method; laser diode; optical surface planar waveguide fabrication; polishing; Crystals; Optical device fabrication; Optical planar waveguides; Optical refraction; Optical surface waves; Optical variables control; Optical waveguides; Planar waveguides; Surface reconstruction; Surface waves;
Conference_Titel :
Lasers and Electro-Optics Europe, 2005. CLEO/Europe. 2005 Conference on
Print_ISBN :
0-7803-8974-3
DOI :
10.1109/CLEOE.2005.1568080
