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All-optical switch loop
It is composed of a loop amplifier, a multimode interference waveguide amplifier (MMIWA), an input leg, and an output leg. The functions of the MMIWA include input/output power splitting and nonlinear coupling. Feasibility of pulsed-signal operation of all-optical self-switching and cross switching in an all-semiconductor optical-amplifier nonlinear optical loop device is reported. The device, based on a GaAs/AlGaAs quantum-well epitaxial structure, has dimensions of 0. Ultrahigh speed and ultralow energy consumption are two necessary indexes of all-optical switches. The pro-posed flip flop has a fast response, a flat out ut gain, and a short switching-on interval of a few hundreds of picoseconds regardless of the associated. Abstract: We experimentally demonstrate, for the first time, an all-optical switch in a phase-sensitive fiber optic parametric amplifier operated in saturation.
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