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

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]

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

Click here to see a list of articles that cite this paper

Related Journal Articles

• Optical pumping in ⁴He with frequency-shifted feedback amplification of light (JOSAB)
• Polarization-maintaining, double-clad fiber amplifier employing externally applied stress-induced birefringence (OL)
• Three-cascaded 1407-nm Raman laser based on phosphorus-doped silica fiber (OL)
• Single-mode operation of a coiled multimode fiber amplifier (OL)
• Off-resonant self- and cross-phase-modulation-induced modulation instabilities in single-mode rare-earth-doped fiber amplifiers (JOSAB)

Related Conference Papers

• Spectral broadening of double rayleigh backscattering in a distributed raman amplifier
• Broadband discrete fiber raman amplifier with high differential gain operating over 1650nm-band
• Impact of nonlinear pump interactions on broadband distributed Raman amplification
• Generation of 10 GHz pulse packets from an actively mode-locked fiber ring laser
• Generation of 10 GHz pulse packets from an actively mode-locked fiber ring laser
• Single-Gate 320-to-8x40 Gb/s Demultiplexing
• Single-Gate 320-to-8x40 Gb/s Demultiplexing