Title :
Reduction of relaxation oscillations in optical automatic gain clamped EDFA using fast electronic feedforward
Author :
Chung, H.S. ; Lee, H.H. ; Chu, M.J. ; Lee, J.H. ; Lee, J.H.
Author_Institution :
Opt. Commun. Dept., Electron. & Telecommun. Res. Inst., Daejon, South Korea
fDate :
2/28/2002 12:00:00 AM
Abstract :
A theoretical investigation of reduction of relaxation oscillations in optical automatic gain clamped erbium-doped fibre amplifiers (EDFAs) with fast electronic feedforward is reported. The results showed that the speed of control electronics or corresponding response times, 4, 6 or 8 μs, bounded the reductions of the relaxation oscillations for 40, 20 or 10 channels, respectively
Keywords :
erbium; feedforward; optical communication equipment; optical fibre amplifiers; relaxation oscillators; wavelength division multiplexing; 4 to 8 mus; electronic feedforward; erbium-doped fibre amplifier; input channels; long-haul wavelength-division multiplexed transmission; optical automatic gain clamped EDFA; relaxation oscillations; response times; transmitted channels;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020153
