Title :
Phase matching for efficient nonlinear frequency generation in hybrid Si/chalcogenide glass slot waveguides
Author :
Nolte, Peter W. ; Bohley, Christian ; Schilling, Joerg
Author_Institution :
Center for Innovation Competence SiLi-nano, Martin-Luther-Univ. Halle-Wittenberg, Halle, Germany
Abstract :
We present a novel design route for Silicon/chalcogenide hybrid slot waveguides, which allows waveguide geometries with FOM > 1 and a maximum field concentration within the infiltrated material and a vanishing group velocity dispersion (GVD) at the same time. The independent adjustment of the GVD and the mode profile is achieved by a small periodic variation of the refractive index along the waveguide. This introduces a photonic band gap for the waveguide mode leading to additional band bending in the vicinity of this band gap.
Keywords :
chalcogenide glasses; elemental semiconductors; optical design techniques; optical dispersion; optical glass; optical harmonic generation; optical phase matching; optical waveguides; photonic band gap; refractive index; silicon; Si; band bending; field concentration; group velocity dispersion; hybrid Si-chalcogenide glass slot waveguides; infiltrated material; mode profile; nonlinear frequency generation; phase matching; photonic band gap; refractive index; waveguide geometry; waveguide mode; Dispersion; Optical mixing; Optical refraction; Optical waveguides; Optimized production technology; Silicon;
Conference_Titel :
Lasers and Electro-Optics Europe (CLEO EUROPE/IQEC), 2013 Conference on and International Quantum Electronics Conference
Conference_Location :
Munich
Print_ISBN :
978-1-4799-0593-5
DOI :
10.1109/CLEOE-IQEC.2013.6800914
