On the feasibility of full pattern-operated all-optical XOR gate with single semiconductor optical amplifier-based ultrafast nonlinear interferometer

2009 ◽  
Vol 282 (14) ◽  
pp. 2729-2740 ◽  
Author(s):  
T. Siarkos ◽  
K.E. Zoiros ◽  
D. Nastou
Keyword(s):  
Semiconductor Optical Amplifier ◽  
Optical Amplifier ◽  
Xor Gate ◽  
All Optical ◽  
Nonlinear Interferometer

All-optical binary full subtractor using logic operations based on nonlinear properties of semiconductor optical amplifier

2016 ◽  
Vol 25 (01) ◽  
pp. 1650003 ◽  
Author(s):  
Sanmukh Kaur
Keyword(s):  
Data Streams ◽  
Semiconductor Optical Amplifier ◽  
Optical Amplifier ◽  
Successful Operation ◽  
Xor Gate ◽  
Nonlinear Properties ◽  
All Optical ◽  
Order Position ◽  
Logic Operations ◽  
Or Gate

We propose a new and potentially integrable scheme for the realization of an all-optical binary full subtractor employing two half-subtractors and an additional OR gate. The half-subtractor comprises an XOR gate, an AND gate, and a NOT gate. The XOR gate is realized using semiconductor optical amplifier (SOA)-based Mach–Zehnder interferometer (MZI). The AND, OR, and NOT gates are based on nonlinear properties of semiconductor optical amplifier. The proposed scheme is driven by two input data streams and a borrow bit from the previous less significant bit order position. In our proposed design, we achieve extinction ratios for difference and borrow output signals of 11[Formula: see text]dB and 10[Formula: see text]dB, respectively. Successful operation of the system is demonstrated at 10[Formula: see text]Gb/s return-to-zero modulated signals.

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