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The design and experimental characterization of an all-optical circular shift register are presented. The proposed scheme consists of a fiber loop optical buffer and a bit selecting circuit. A semiconductor optical amplifier (SOA) is used as an active element in the buffer structure, while the bit selecting circuit exploits Kerr effect in a highly nonlinear medium. The scheme is designed to store...
An n-bit all-optical dynamic random access memory for write, read and refresh operation in optical computing applications is investigated. The 1-bit memory element obtained by a SOA-based variable optical buffer is verified and characterized.
An integrable all-optical clocked D type flip-flop is demonstrated exploiting SOA-based transparent all-optical SR latch. Nonlinear effects of four wave mixing and cross gain modulation are used for optical logic gate operations.
A complex integrable all-optical combinatorial network based on semiconductor optical amplifiers is demonstrated. As an application, contention detection and switching control in 2times2 photonic node is performed in a diverse priority self routing packet network.
A simple, compact, ultra-fast, reconfigurable photonic logic gate is demonstrated exploiting four-wave-mixing and cross-gain-modulation in a single semiconductor-optical-amplifier with improved dynamics. Bit-error-rate measurements are reported for XNOR, AND, NOR, and NOT logic functions
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