Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 14, Issue 10, Pages 1439-1441Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2002.802426
Keywords
counterpropagating operation; optical communication; optical logic devices; semiconductor optical amplifiers
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The authors present a novel all-optical logic NOR gate using two-cascaded semiconductor optical amplifiers (SOAs) in a counterpropagating feedback configuration. This configuration accentuates the gain nonlinearity due to the mutual gain modulation of the two SOAs. The, all-optical NOR gate feasibility has been demonstrated delivering an extinction ratio higher than 12 dB over a wide range of wavelength.
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