10 September 2007 All-optical logic NOR gate at 40 Gb/s using SOA-based Mach-Zehnder interferometer
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An all-optical logic NOR gate operating at 40 Gb/s has been demonstrated using an SOA-based Mach-Zehnder interferometer (MZI). An optical loop mirror is used as a delayed interferometer to reshape the return-to-zero (RZ) NOR sequence from the MZI output port. The performance of the NOR operation is numerically analyzed by solving the rate equation of an SOA. An increase in signal output power enhances the Q factor and extinction ratio. Faster SOAs such as quantum-dot SOAs can achieve higher Q value. The demonstrated technique has potential for optical logic operation at ultrahigh speed
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H. Sun, H. Sun, Z. Chen, Z. Chen, S. Ma, S. Ma, N. K. Dutta, N. K. Dutta, } "All-optical logic NOR gate at 40 Gb/s using SOA-based Mach-Zehnder interferometer", Proc. SPIE 6775, Active and Passive Optical Components for Communications VII, 67750F (10 September 2007); doi: 10.1117/12.738749; https://doi.org/10.1117/12.738749


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