Title :
Demonstration of 20-Gb/s all-optical XOR gate by four-wave mixing in semiconductor optical amplifier with RZ-DPSK modulated inputs
Author :
Chan, Kit ; Chan, Chun-Kit ; Chen, Lian Kuan ; Tong, Frank
Author_Institution :
Dept. of Inf. Eng., Chinese Univ. of Hong Kong, China
fDate :
3/1/2004 12:00:00 AM
Abstract :
We propose and demonstrate an all-optical XOR gate at 20 Gb/s using four-wave mixing in a semiconductor optical amplifier (SOA), with return-to-zero differential phase-shifted keying modulated input signals. With such constant intensity modulation format, the patterning-induced degradation in SOA is also alleviated. The proposed scheme is robust and feasible for optical logic operation at ultrahigh speeds.
Keywords :
differential phase shift keying; multiwave mixing; optical logic; optical modulation; semiconductor optical amplifiers; 20 Gbit/s; RZ-DPSK modulation; SOA; all-optical XOR gate; four-wave mixing; optical logic operation; patterning-induced degradation; return-to-zero differential phase-shifted keying; semiconductor optical amplifier; Degradation; Four-wave mixing; Intensity modulation; Nonlinear optics; Optical mixing; Optical modulation; Phase modulation; Robustness; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.823750
