Abstract

We propose a new technique to minimize gain-transient time of wavelength-division-multiplexing (WDM) signals in erbium-doped fiber amplifiers (EDFA) in channel add/drop networks. We have dramatically reduced the gain-transient time to less than <TEX>$3{\mu}sec$</TEX> by applying, for the first time to our knowledge, a disturbance observer with a proportional/integral/differential (PID) controller to the control of EDFA gain. The <TEX>$3{\mu}sec$</TEX> gain-transient time is the fastest one ever reported and it is approximately less than 1.5% of <TEX>$200{\mu}sec$</TEX> gain-transient time of commercially available EDFAs for WDM networks. We have demonstrated the superiority of the new technique by performing the simulation with a numerical modeling software package such as the <TEX>$Optsim^{TM}$</TEX>.

© 2006 Optical Society of Korea

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  1. J. L. Zyskind, Y. Sun, A. K. Srivastava, J. W. Sulhoff, A. J. Lucero, C. Wolf, and R. W. Tkach, "Fast power transients in optically amplified multiwavelength optical networks," Proc. OFC"96, Paper PD31, 1996
  2. M. Zirngibl, "Gain control in erbium-doped fiber amplifiers by all-optical feedback loop," Electron. Lett., vol. 27, no.7, pp. 560-561, 1991
    [CrossRef]
  3. S. Y. Park, H. K. Kim, S. M. Kang, G. Y. Lyu, H. J. Lee, J. H. Lee, and S. Y. Shin, "A gain-flattened two-stage EDFA for WDM optical networks with a fast link control channel," Optics Communications, vol. 153, no. 1, pp. 23-26, 1998
    [CrossRef]
  4. Y. Choi, W. K. Chung, and Y. Youm, "Disturbance observer in framework," IEEE IECON, pp. 1394-1400, 1996
  5. B. K. Kim, H. T. Choi, W. K. Chung, and I. H. Suh, "Analysis and design of robust motion controllers in the unified framework," Journal of Dynamic Systems, Measurement, and Control, vol. 124, pp. 313-321, 2002
    [CrossRef]

2002

B. K. Kim, H. T. Choi, W. K. Chung, and I. H. Suh, "Analysis and design of robust motion controllers in the unified framework," Journal of Dynamic Systems, Measurement, and Control, vol. 124, pp. 313-321, 2002
[CrossRef]

1998

S. Y. Park, H. K. Kim, S. M. Kang, G. Y. Lyu, H. J. Lee, J. H. Lee, and S. Y. Shin, "A gain-flattened two-stage EDFA for WDM optical networks with a fast link control channel," Optics Communications, vol. 153, no. 1, pp. 23-26, 1998
[CrossRef]

1996

Y. Choi, W. K. Chung, and Y. Youm, "Disturbance observer in framework," IEEE IECON, pp. 1394-1400, 1996

J. L. Zyskind, Y. Sun, A. K. Srivastava, J. W. Sulhoff, A. J. Lucero, C. Wolf, and R. W. Tkach, "Fast power transients in optically amplified multiwavelength optical networks," Proc. OFC"96, Paper PD31, 1996

1991

M. Zirngibl, "Gain control in erbium-doped fiber amplifiers by all-optical feedback loop," Electron. Lett., vol. 27, no.7, pp. 560-561, 1991
[CrossRef]

Electronics Letters

M. Zirngibl, "Gain control in erbium-doped fiber amplifiers by all-optical feedback loop," Electron. Lett., vol. 27, no.7, pp. 560-561, 1991
[CrossRef]

IEEE IECON

Y. Choi, W. K. Chung, and Y. Youm, "Disturbance observer in framework," IEEE IECON, pp. 1394-1400, 1996

Journal of Dynamic Systems, Measurement, and Control

B. K. Kim, H. T. Choi, W. K. Chung, and I. H. Suh, "Analysis and design of robust motion controllers in the unified framework," Journal of Dynamic Systems, Measurement, and Control, vol. 124, pp. 313-321, 2002
[CrossRef]

Optics communications

S. Y. Park, H. K. Kim, S. M. Kang, G. Y. Lyu, H. J. Lee, J. H. Lee, and S. Y. Shin, "A gain-flattened two-stage EDFA for WDM optical networks with a fast link control channel," Optics Communications, vol. 153, no. 1, pp. 23-26, 1998
[CrossRef]

Proc. OFC'96

J. L. Zyskind, Y. Sun, A. K. Srivastava, J. W. Sulhoff, A. J. Lucero, C. Wolf, and R. W. Tkach, "Fast power transients in optically amplified multiwavelength optical networks," Proc. OFC"96, Paper PD31, 1996

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