title: All-optical time-division demultiplexing and spatial pulse routing with a GaAs/AlGaAs microring resonator.
abstract: We report what is to our knowledge the first demonstration of all-optical time-division demultiplexing and spatial pulse routing in a compact nonlinear GaAs/AlGaAs microring resonator operating at 1.55 microm . Switching is through the refractive-index change induced by two-photon absorption. The switching time of the device, limited by the ring-charging time and the recombination time of the induced carriers, is measured to be 30 ps. The switching on-off contrast, limited by the slight mismatch between the input and output coupling coefficients, exceeds 8 dB. The device can be used for time-division multiplexing as well.
authors.forename: T A
authors.initials: TA
authors.lastname: Ibrahim
authors.forename: V
authors.initials: V
authors.lastname: Van
authors.forename: P-T
authors.initials: PT
authors.lastname: Ho