Periodically domain-inverted AlGaAs quasi-phase-matchedfrequency-conversion waveguides

摘要

Periodically domain-inverted AlGaAs quasi-phase-matched waveguideshave been fabricated by GaAs-Ge-GaAs (100) sublattice reversal epitaxy.A preliminary SHG experiment has exhibited quasi-phase-matched output atthe fundamental wavelength of 1.576 μm