Title :
Rigorous Full-Vectorial Beam Propagation Analysis of Second-Harmonic Generation in Zinc Oxide Waveguides
Author :
Wijeratne, I.N.M. ; Kejalakshmy, Namassivayane ; Rahman, B.M.A. ; Grattan, K.T.V.
Author_Institution :
Sch. of Eng. & Math. Sci., City Univ. London, London, UK
Abstract :
In this paper, a rigorous full-vectorial finite-element (FE)-based beam propagation method (BPM) has been implemented to study second-harmonic generation (SHG) in planar zinc oxide (ZnO) waveguides for the first time. It is shown here that the SHG output power is significantly improved when the waveguide structure is optimized. Furthermore, phase matching between the fundamental and second-harmonic modes, through the use of the quasi-phase matching technique, is discussed.
Keywords :
II-VI semiconductors; finite element analysis; optical harmonic generation; optical phase matching; optical waveguides; wide band gap semiconductors; zinc compounds; FE BPM method; SHG output power; ZnO; ZnO waveguides; fundamental mode; planar zinc oxide waveguides; quasiphase matching; rigorous full-vectorial finite-element-based beam propagation method; second-harmonic generation; second-harmonic mode; waveguide structure; Frequency conversion; Nonlinear optics; Optical harmonic generation; Optical materials; Optical waveguides; Zinc oxide; Second-harmonic generation (SHG); beam propagation method (BPM); finite-element method (FEM); zinc oxide (ZnO) waveguide;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2013.2256115
