Department of Electrical Engineering & Computer ScienceSeoul National University
Cite this article as:
Jung, Y.J., Son, C.W., Lee, S. et al. Opt Quant Electron (2008) 40: 425. doi:10.1007/s11082-008-9224-7
An all-optical encryption system built on the basis of electrical logic circuit design principles is proposed, using semiconductor optical amplifier (SOA) exclusive or (XOR) logic gates. Numerical techniques (steady-state and dynamic) were employed in a sequential manner to optimize the system parameters, speeding up the overall design process. The results from both numerical and experimental testbeds show that the encoding/decoding of the optical signal can be achieved at a 10 Gbps data rate with a conventional SOA cascade without serious degradation in the data quality.
Cross gain modulationNumerical simulationSemiconductor optical amplifierXOR encryption