Journal of the Optical Society of Korea

Optical Society of Korea (한국광학회)
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Theoretical Analysis of Fast Gain-Transient Recovery of EDFAs Adopting a Disturbance Observer with PiD Controller in WDM Network

  • Kim, Sung-Chul (Department of Communications Engineering, Myongji University) ;
  • Shin, Seo-Yong (Department of Communications Engineering, Myongji University) ;
  • Song, Sung-Ho (Division of Information Engineering & Telecommunications, Hallym University)
  • Received : 2007.11.14
  • Published : 2007.12.25
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Abstract

We have proposed an application of disturbance observer with PID controller to minimize gain-transient time of wavelength-division-multiplexing(WDM) multi channels in optical amplifier in channel add/drop networks. We have dramatically reduced the gain-transient time to less than $3{\mu}sec$ by applying a disturbance observer with a proportional/integral/ differential(PID) controller to the control of amplifier gain. The theoretical analysis on the 3-level erbium-doped fiber laser and the disturbance observer technique is demonstrated by performing the simulation with co-simulation of the $MATLAB^{TM}$ and a numerical modeling software package such as the $Optsim^{TM}$.

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References

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