Title :
Simple 40 Gbit/s all-optical XOR gate
Author :
Yang, Xu ; Manning, R.J. ; Hu, Wenfeng
Author_Institution :
State Key Lab. of Adv. Opt. Commun. Syst. & Networks, Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
An all-optical XOR gate at 40 Gbit/s is demonstrated using ultrafast nonlinear interferometers (UNI) incorporating semiconductor optical amplifiers (SOAs), where no additional probe beam is required. The only inputs launched into the setup are the data A and B. The XOR logic of the data A and B is the sum of two components A??B and AB??, each of which is obtained from the output of UNI via cross-phase modulation in SOAs. The SOA switching pulse energy is lower than 33 fJ.
Keywords :
high-speed optical techniques; light interferometers; optical logic; optical modulation; semiconductor optical amplifiers; SOA; all-optical XOR gate; bit rate 40 Gbit/s; cross-phase modulation; semiconductor optical amplifiers; switching pulse energy; ultrafast nonlinear interferometers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.3039
