Super-fast AGC-EDFA for the burst-mode systems without gain excursion in 20-ns and 21-dB ramped input

AGC-EDFA for the burst-mode signals is one of the most important devices in the next generation WDM. We have realized the AGC-EDFA without gain excursion in 20-ns and 21-dB ramped input with the high-speed VOA.