Type-II quasi phase matching in periodically intermixed semiconductor superlattice waveguides.
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.
Hutchings
David C
DC
Department of Electronics and Electrical Engineering, University of Glasgow, Glasgow, G12 8QQ, Scotland, UK. D.Hutchings@elec.gla.ac.uk
Wagner
Sean J
SJ
Holmes
Barry M
BM
Younis
Usman
U
Helmy
Amr S
AS
Aitchison
J Stewart
JS