Title :
Variations of optical M-waveguides for direct phase matching in AlGaAs
Author :
Oster, B. ; Fouckhardt, H.
Author_Institution :
Dept. of Phys., Kaiserslautern Univ., Germany
fDate :
7/1/2001 12:00:00 AM
Abstract :
Two variations of an optical indexwise M-shaped waveguide structure in AlGaAs are presented as results of numerical simulations. The principal differences of the waveguiding aspects are discussed. The impact of the optical layer thicknesses is investigated with respect to phase matching and conversion efficiency for second-harmonic generation (SHG). Despite large differences in the interacting mode distributions, both waveguide configurations yield comparable nonlinear normalized conversion efficiencies. The technologically simple waveguide designs represent an attractive alternative for phase matched SHG.
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; integrated optics; optical harmonic generation; optical phase matching; optical waveguide theory; AlGaAs; conversion efficiency; direct phase matching; interacting mode distributions; nonlinear normalized conversion efficiencies; numerical simulations; optical M-waveguides; optical indexwise M-shaped waveguide structure; optical layer thicknesses; phase matched SHG; second-harmonic generation; technologically simple waveguide designs; waveguiding aspects; Frequency conversion; Nonlinear optics; Optical frequency conversion; Optical harmonic generation; Optical reflection; Optical refraction; Optical variables control; Optical waveguide theory; Optical waveguides; Semiconductor waveguides;
Journal_Title :
Photonics Technology Letters, IEEE
