Open AccessUltrafast all-optical NOR gate based on semiconductor optical amplifier and fiber delay interferometer
Author(s) -
Jing Xu,
Chi Zhang,
Deming Liu,
Dexiu Huang
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.14.010708
Subject(s) - optical amplifier , ultrashort pulse , interferometry , optics , materials science , optical switch , optical fiber , optoelectronics , physics , laser
An ultrafast all-optical logic NOR gate based on a semiconductor optical amplifier (SOA) and a fiber delay interferometer (FDI) is presented. For high-speed input return-to-zero (RZ) signal, nonreturn-to-zero (NRZ) switching windows which satisfy Boolean NOR operation can be formed by properly choosing the delay time and the phase shift of FDI. 40Gb/s NOR operation has been demonstrated successfully with low control optical power. The factors that degrade the NOR operation have been discussed.