Title :
Group velocity mismatch and third-order nonlinearities in domain-disordered quasi-phase matching waveguides
Author :
Muhairi, A. Al ; Wagner, S.J. ; Aitchison, J.S. ; Helmy, A.S.
Author_Institution :
Edward S. Rogers Sr. Dept. of Electr. & Comput. Eng., Univ. of Toronto, Toronto, ON
Abstract :
Simulations show that group-velocity-mismatch and third-order effects reduce second harmonic generation efficiency by 23% and 33%, respectively, in GaAs/AlAs superlattice waveguide. Also, optimal waveguide lengths were found to be longer than the walkoff length.
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; integrated optics; optical harmonic generation; optical multilayers; optical phase matching; optical waveguides; semiconductor superlattices; GaAs-AlAs; domain-disordered quasiphase matching waveguides; efficiency 23 percent; efficiency 33 percent; group velocity mismatch; optimal waveguide lengths; second harmonic generation efficiency; superlattice waveguide; third-order nonlinearities; walkoff length; Frequency conversion; Gallium arsenide; Lithium niobate; Maxwell equations; Nonlinear optics; Optical distortion; Optical pulses; Optical waveguides; Scanning probe microscopy; Superlattices; (190.4410) Nonlinear optics, parametric processes; (190.5970) Semiconductor nonlinear optics including MQW;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
