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12 December 2003 All-optical flip flops using directly coupled semiconductor optical amplifiers
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Abstract
Two semiconductor optical amplifiers (SOAs) are directly coupled by connecting the output of each to the input of the other. This provides positive feedback for an inverted optical threshold; there is negligible output above a specified threshold. The SOA pair is analyzed and simulated to optimize parameters. Two SOA pairs are cross-connected in a similar manner by connecting the output of each pair to the input of the other, to construct an R-S flip-flop. Analysis shows that only two states exist. Simulation is used to demonstrate setting and resetting the R-S flip-flop at up to 5 Gbps.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alastair D McAulay "All-optical flip flops using directly coupled semiconductor optical amplifiers", Proc. SPIE 5201, Photonic Devices and Algorithms for Computing V, (12 December 2003); https://doi.org/10.1117/12.507015
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