All-optical time-division demultiplexing and spatial pulse routing with a GaAs/AlGaAs microring resonator

T. A. Ibrahim, V. Van, P.-T. Ho
2002 Optics Letters  
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 mismatch
more » ... ween the input and output coupling coefficients, exceeds 8 dB. The device can be used for time-division multiplexing as well.
doi:10.1364/ol.27.000803 pmid:18007933 fatcat:wpshv5ill5fg7j7vqppqssdfle