Open AccessSimultaneous four-wave mixing and cross-gain modulation for implementing an all-optical XNOR logic gate using a single SOA
Author(s) -
Saurabh Kumar,
Alan E. Willner
Publication year - 2006
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.14.005092
Subject(s) - xnor gate , optical amplifier , four wave mixing , modulation (music) , optics , mixing (physics) , amplified spontaneous emission , logic gate , computer science , physics , optoelectronics , nonlinear optics , laser , nand gate , algorithm , quantum mechanics , acoustics
We report on an all-optical XNOR-gate using simultaneous Four-Wave Mixing (FWM) and Cross-Gain Modulation (XGM) in a semiconductor optical amplifier (SOA). FWM generates the bitwise AND output corresponding to the two input data streams while XGM is used to generate the NOR output. These two outputs are combined using a coupler to obtain the final XNOR output. Error-free operation for RZ data with <2dB power-penalty is reported.