Title :
System margin enhancement in terabit capacity 40 Gb/s systems using an integrated EDFA with dynamic gain equalizer
Author :
Birk, M. ; Srivastava, A.K. ; Wilson, G. ; Ye, J. ; Chen, L. ; Cao, Y. ; White, I. ; Lu, P. ; Santo, M. ; Carra, A. ; Wang, C. ; Cabot, S. ; Devincentis, D. ; Monnard, R. ; Brodsky, M. ; Frigo, N.J.
Author_Institution :
AT&T Labs-Res., Middletown, NJ, USA
Abstract :
In this paper we report a fully integrated high power, low noise figure EDFA with DGE and OCM (optical channel monitor) utilizing an imbedded controller and fast control algorithm converging in seconds (limited by OCM response time). The EDFA/DGE is used to demonstrate system margin enhancement in a 24 X 40 Gb/s WDM consisting of 7 EDFAs with 200 km of fiber having 8 dB channel power ripple at the end of transmission line. It is shown that DGE enhances system margin, improving the Q-factor by 2 dB for the worst channel.
Keywords :
Q-factor; equalisers; erbium; laser noise; monitoring; optical fibre amplifiers; optical fibre communication; telecommunication channels; wavelength division multiplexing; 200 km; 40 Gbit/s; OCM response; Q-factor; WDM; channel power ripple; dynamic gain equalizer; fast control algorithm; imbedded controller; integrated EDFA; low noise figure EDFA; optical channel monitor; system margin enhancement; telecommunication channel; terabit capacity; transmission line; Delay; Equalizers; Erbium-doped fiber amplifier; Integrated optics; Monitoring; Noise figure; Optical control; Optical noise; Power transmission lines; Wavelength division multiplexing;
Conference_Titel :
Optical Fiber Communication Conference and Exhibit, 2002. OFC 2002
Print_ISBN :
1-55752-701-6
DOI :
10.1109/OFC.2002.1036697
