Abstract
A novel architecture for an all-optical flip-flop is validated experimentally. The architecture comprises a single semiconductor optical amplifier–based Mach–Zehnder interferometer with an external feedback loop. The experimental results show optical bistable operation for a latching device with an on–off contrast ratio of that employs set and reset pulses of less than , although the energy of these pulses could be greatly reduced by optical integration of the whole device.
© 2005 Optical Society of America
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