10-Gb/s All-Optical Half-Adder With Interferometric SOA Gates
D. TsiokosDepartment of Electrical and Computer Engineering, National and Technical University of Athens, Athens, GreeceE. KehayasDepartment of Electrical and Computer Engineering, National and Technical University of Athens, Athens, GreeceKonstantinos VyrsokinosDepartment of Electrical and Computer Engineering, National and Technical University of Athens, Athens, GreeceT. HoubavlisDepartment of Electrical and Computer Engineering, National and Technical University of Athens, Athens, GreeceL. StampoulidisDepartment of Electrical and Computer Engineering, National and Technical University of Athens, Athens, GreeceGeorge T. KanellosDepartment of Electrical and Computer Engineering, National and Technical University of Athens, Athens, GreeceNikos PlerosDepartment of Electrical and Computer Engineering, National and Technical University of Athens, Athens, GreeceG. GuekosETH Zurich (Swiss Federal Institute of Technology), Zurich, SwitzerlandH. AvramopoulosDepartment of Electrical and Computer Engineering, National and Technical University of Athens, Athens, Greece
2004en
ABI
Аннотация
In this letter, we report an all-optical module that generates simultaneously four Boolean operations at 10 Gb/s. The circuit employs two cascaded ultrafast nonlinear interferometers and requires only two signals as inputs. The first gate is configured as a 2 /spl times/ 2 exchange-bypass switch and provides OR and AND logical operations. The second gate generates XOR (SUM bit) and AND (CARRY bit) Boolean operations and constitutes a binary half-adder. Successful operation of the system is demonstrated with 10-Gb/s return-to-zero pseudorandom data patterns.
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