title: Surface emitted second-harmonic generation from a quasi-phase matched waveguide in an Al(x)Ga(1-x)As/Al(2)O(3) microcavity.
abstract: A nonlinear Al(x)Ga(1-x)As waveguide consisting of a quasi-phase matched heterostructure embedded in a microcavity has been designed and fabricated. The microcavity resonator is formed by Al(2)O(3)/Al(0.32)Ga(0.68)As multilayer mirrors located above and below the waveguide core. The cavity resonantly enhances the surface emitting second-harmonic generation. The SH conversion efficiency has been measured for wavelengths between l = 1525 and 1575 nm. A simple waveguide loss measurement technique based on the SH autocorrelation of short optical pulses in a III-V waveguide is also demonstrated.
authors.forename: S
authors.initials: S
authors.lastname: Janz
authors.forename: Y
authors.initials: Y
authors.lastname: Beaulieu
authors.forename: A
authors.initials: A
authors.lastname: Fiore
authors.forename: P
authors.initials: P
authors.lastname: Bravetti
authors.forename: V
authors.initials: V
authors.lastname: Berger
authors.forename: E
authors.initials: E
authors.lastname: Rosencher
authors.forename: J
authors.initials: J
authors.lastname: Nagle