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A novel gain-clamping technique for EDFA in WDM add/drop networks  

박정문 (명지대학교 통신공학과 광통신연구실)
신서용 (명지대학교 통신공학과 광통신연구)
송성호 (한림대학교 정보통신공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.29, no.4A, 2004 , pp. 363-369 More about this Journal
Abstract
We propose, for the first time to our knowledge, a novel gain-clamping method for EDFA in WDM add/drop networks by introducing a disturbance observer technique. The control input signal for gain-clamping is composed of a nominal control signal and an additional control signal of compensating the gain fluctuations caused by channel add/drops. Based on disturbance observer technique, we designed the additional control signal such that it has the compensating information of estimated disturbance resulted from channel add/drops. The circuit for generating additional control signal can easily be implemented by using simple electronic devices. We proved the superiority of the new technique over the previous ones by showing simulation results of minimized dips and spikes that appear in power profile of EDFA in the process of channel add/drops.
Keywords
EDFA; WDM; channel add/drop; gain-clamping; disturbance observer technique;
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  • Reference
1 /
[ E.Desurvire ] / Erbium Doped Fiber Amplifier
2 Doped-Fiber Amplifer Dynamics: A System Perspective /
[ Alberto Bononi;Leslie A. Rusch ] / IEEE Journal of Lightware Technology
3 Link-control gain clamping for a cascaded EDFAs link using differential ASE monitor /
[ H.Yoon;N.Park(et al.) ] / IEEE Photon. Technol. Lett.
4 Analysis and design of robust motion controllers in the unified framework /
[ B.K.Kim;H.T.Choi;W.K.Chung;I.H.Suh ] / Journal of Dynamic Systems, Measurement and Control   DOI   ScienceOn
5 /
[ P.C.Becker;N.A.Olsson;J.R.Simpson ] / Erbium Doped Fiber Amplifiers : undamentals and Technology
6 A gain-flattened two-stage EDFA for WDM optical networks with a fast link control channel /
[ S.Y.Park(et al.) ] / Optics Communications
7 Gain control in erbium-doped fiber amplifiers by all-optical feedback loop /
[ M.Zirngibl ] / Electron. Lett.   DOI   ScienceOn
8 Fast power transients in optically amplified multiwavelength optical networks /
[ J.L.Zyskind(et al.) ] / Proc. OFC'96, Paper PD31
9 Disturbance observer in <TEX>$H_∞$</TEX> framework /
[ Y.J.Choi(et al.) ] / IEEE IECON