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All-optical time-division demultiplexing and spatial pulse routing with a GaAs/AlGaAs microring resonator
We report what is to our knowledge the first demonstration of all-optical time-division demultiplexing and spatial pulse routing in a compact nonlinear GaAs͞AlGaAs microring resonator operating at 1.55 mm. 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 mismatchdoi:10.1364/ol.27.000803 pmid:18007933 fatcat:wpshv5ill5fg7j7vqppqssdfle