N. Peyghambarian, S. G. Lee, R. Jin, J. Yumoto, G. Khitrova, H. M. Gibbs, R. Binder, and S. W. Koch, Optical Sciences Center, University of Arizona, Tucson, Ariz.
We have demonstrated ultrafast switching behavior in a current-injected GaAs/AlGaAs multiple quantum well nonlinear directional coupler at room temperature. The results show low cross-over pulse energy (6 pJ) and full recovery within 1 picosecond.
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