Title :
Study of all-optical XOR using Mach-Zehnder Interferometer and differential scheme
Author :
Wang, Qiang ; Zhu, Guanghao ; Chen, Hongmin ; Jaques, James ; Leuthold, Juerg ; Piccirilli, Al B. ; Dutta, Niloy K.
Author_Institution :
Dept. of Phys., Univ. of Connecticut, Storrs, CT, USA
fDate :
6/1/2004 12:00:00 AM
Abstract :
All-optical XOR functionality has been demonstrated experimentally using an integrated SOA-based Mach-Zehnder interferometer (SOA-MZI) at 20 and 40 Gb/s. The performance of the XOR results has been analyzed by solving the rate equation of the SOA numerically. The high-speed operation is limited by the carrier lifetime in the SOA. In order to solve the limitations imposed by carrier lifetime, a differential scheme for XOR operation has been experimentally investigated. This scheme is potentially capable of XOR operation to >100 Gb/s.
Keywords :
Mach-Zehnder interferometers; carrier lifetime; integrated optics; logic gates; optical communication equipment; optical logic; semiconductor optical amplifiers; 20 Gbit/s; 40 Gbit/s; SOA-MZI; XOR operation; all-optical XOR; all-optical XOR functionality; carrier lifetime; differential scheme; high-speed operation; integrated SOA-based Mach-Zehnder interferometer; rate equation; ultrafast all-optical exclusive XOR logic gate; Charge carrier lifetime; Distributed feedback devices; Equations; Logic gates; Optical fibers; Optical interferometry; Optical pulse generation; Optical signal processing; Performance analysis; Semiconductor optical amplifiers; MZI; Mach–Zehnder interferometer; XOR operation; optical logic;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2004.828261
