ETRI Journal

Electronics and Telecommunications Research Institute (한국전자통신연구원)
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Effect of Optical Delay on the Suppression of the Power Transient Excursion in a Combined Gain-Controlled Erbium-Doped Fiber Amplifier

  • Received : 2003.07.08
  • Published : 2003.12.31
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Abstract

This report describes the effect of optical delay on the suppression of the power transient excursion in a combined gain-controlled erbium-doped fiber amplifier with an internal optical feedback loop (OFL). A simple homogeneous model showed that the optical delay caused a phase change in the oscillation of the surviving and laser channels, which resulted in a reduction of the overall power transient excursion. In addition to the reduction, a real system with a 1528.7-nm OFL shifted the oscillation upward or downward according to channel removal or addition, whereas another one with a 1560.9-nm OFL did not. This different transient behavior reflected a control-wavelength dependence on optical automatic gain control, where spectral-hole burning dominated over relaxation oscillation for 1528.7 nm, and vice versa for 1560.9 nm.

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References

  1. ETRI J. v.24 no.2 Design of Hybrid Optical Amplifiers for High Capacity Optical Transmission Kim, S.K.;Chang, S.H.;Han, J.S.;Chu, M.J.
  2. Proc. OAA'96 Fast Gain Control in an Erbium-Doped Fiber Amplifier Srivastava, A.K.;Sun, Y.;Zyskind, J.L.;Sulhoff, J.W.;Wolf, C.;Tkach, R.W.
  3. Proc. ECOC'96 v.5 Fast Link Control Protection for Surviving Channels in Multiwavelength Optical Networks Zyskind, J.L.;Srivastava, A.K.;Sun, Y.;Ellson, J.C.;Newsome, G.W.;Tkach, R.W.;Chraplyvy, A.R.;Sulhoff, J.W.;Strasser, T.A.;Pedrazzain, J.R.;Wolf, C.
  4. IEE Electron. Lett. v.27 no.7 Gain Control in Erbium-Doped Fiber Amplifiers by an All-Optical Feedback Loop Zirngible, M.
  5. Proc. OAA'98 Pump Power Reduction of Optical Feedback Controlled EDFA Using Electrical Feedforward Control Fukutoku, M.;Jinno, M.
  6. IEE Electron. Lett. v.38 no.5 Reduction of Relaxation Oscillations in Optical Automatic Gain Clamped EDFA Using Fast Electronic Feedforward Chung, H.S.;Lee, H.H.;Lee, J.C.;Chu, M.J.;Lee, J.H.
  7. Opt. Lett. v.27 no.13 Suppression of Dynamic Instabilities in Erbium-Doped Fiber Amplifiers with a Combined Gain Control System Sergeyev, S.;Vanin, E.;Popov, S.
  8. Proc. OFC'03 Theoretical Model of Instability-Free Operation for Erbium-Doped Fiber Amplifier with a Combined Gain Control System Sergeyev, S.;Vanin, E.;Jacobsen, G.
  9. Erbium-Doped Fiber Amplifiers Desurvire, E.
  10. J. Lightwave Technol. v.16 no.4 Experimental and Theoretical Analysis of Relaxation-Oscillations and Spectral Hole Burning Effects in All-Optical Gain-Clamped EDFA's for WDM Networks Luo, G.;Zyskind, J.L.;Nagel, J.A.;Ali, Mohamed A.