title: Type-II quasi phase matching in periodically intermixed semiconductor superlattice waveguides.
abstract: Second-harmonic generation using the type-II polarization configuration is demonstrated in quasi-phase-matched GaAs radicalAlGaAs superlattice waveguides. Phase-matching wavelengths and conversion efficiencies were determined for several quasi-phase-matching periods using 1.9 ps pulses. Saturation effects at high input power were concluded to be the result of third-order nonlinear effects.
authors.affiliation: Department of Electronics and Electrical Engineering, University of Glasgow, Glasgow, G12 8QQ, Scotland, UK. D.Hutchings@elec.gla.ac.uk
authors.forename: David C
authors.initials: DC
authors.lastname: Hutchings
authors.forename: Sean J
authors.initials: SJ
authors.lastname: Wagner
authors.forename: Barry M
authors.initials: BM
authors.lastname: Holmes
authors.forename: Usman
authors.initials: U
authors.lastname: Younis
authors.forename: Amr S
authors.initials: AS
authors.lastname: Helmy
authors.forename: J Stewart
authors.initials: JS
authors.lastname: Aitchison