All-optical AND gate at 10 Gbit/s based on cascaded single-port-couple SOAs.
An all-optical logical AND gate at 10 Gbit/s based on cross-gain modulation (XGM) in two cascaded semiconductor optical amplifiers (SOAs) is demonstrated. Single-port-coupled SOAs are employed and specially designed to improve the output extinction ratio as well as the output performance of the logic operation. The output signal power and extinction ratio from the first-stage wavelength converter are critical to achieving all-optical logical AND operation.
Zhang
Xinliang
X
Wang
Ying
Y
Sun
Junqiang
J
Liu
Deming
D
Huang
Dexiu
D