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We demonstrate the applicability of quantum-dot semiconductor-opticalamplifier based wavelength converters to the implementation of an ultra-high speed optical packet switching buffer. The buffer architecture consists of cascaded programmable delay stages that fully utilize the available wavelengths and thus minimize the number of wavelength converters that are required to implement the buffer. Physical layer simulations demonstrate error-free operation of the buffer with 3 cascaded Time-Slot-Interchager (TSI) stages at 160 Gbps in the 1.55um window.

160 Gbps Simulation of a Quantum Dot Semiconductor Optical Amplifier Based Optical Buffer