Abstract

The transient responses of Er-doped fiber amplifier (EDFA) to fast channel adding/dropping processes have been studied and analyzed. The result shows that the speed in which we can control EDFA with a feedback circuit is limited by the physical processes involved in the amplification. We demonstrated that with the combination of electrical feedforward and feedback, the power excursion caused by fast channel adding/dropping processes can be minimized.

© 2003 IEEE

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  1. S. Kinoshita, C. Oshima, H. Itoh, T. Kobayashi, Y. Sugaya and T. Okiyama, "Wide dynamic-range WDM optical amplifiers for 32 × 10 Gb/s, SMF transmission systems,"in Optical Amplifiers and Their Applications Tech. Dig., Vail, CO: 1998.
  2. K. Motoshima, N. Suzuki, K. Shimizu, K. Kasahara, T. Kitayama and T. Yasui, "A channel-number insensitive erbium-doped fiber amplifier with automatic gain and power regulation function", J. Lightwave Technol., vol. 19, pp. 1759-1767, Nov. 2001.
  3. C. Wang and G. J. Cowle, "Optical gain control of Erbium-doped fiber amplifiers with a saturable absorber,"in Optical Amplifiers and Their Applications Tech Dig.,, Vail, CO: 1999, pp. 110-113.
  4. Y. Liu, M. Sharma and M. F. Krol, "Dual-cavity optical gain control for EDFA's and EDFA cascades,"in Optical Amplifiers and Their Applications Tech. Dig.,, Vail, CO: 1999, pp. 115 -117.
  5. J. F. Massicott, S. D. Willson, R. Wyatt, J. R. Armitage, R. Kashyap, D. Williams and R. A. Lobbett, "1480 nm pumped erbium-doped fiber amplifier with all optical automatic gain control", Electron. Lett., vol. 30, pp. 962-964, 1994.
  6. M. Fukutoku and M. Jinno, "Pump power reduction of optical feedback controlled EDFA using electrical feedforward control,"in Optical Amplifiers and Their Applications Tech. Dig.,, Vail, CO: 1998, pp. 32 -34.
  7. S. Sergeyev, E. Vanin and G. Jacobsen, "Gain-clamped dynamics in EDFA with combined electronic feed-forward-Optical feedback control", in OFC Tech. Dig., Anaheim, CA, 2002, pp. 518-519 and references therein.
  8. S. Zemon, A. Budman, R. Wei, E. Eichen and K. T. Ma, "Decay of transmitted light during fiber breaks: Implications of break location", J. Lightwave Technol., vol. 12, pp. 1532-1535, Sept. 1994.
  9. C. Tian and S. Kinoshita, "Novel solution for transient control of WDM amplifiers using the combination of electrical feedforward and feedback", in CLEO'02 Tech. Dig., Long Beach, CA, p. 430.
  10. H. Nakaji, M. Kakui and M. Nishimura, "Wavelength dependent gain dynamics in Erbium-doped fiber amplifiers for multiwavelength optical networks,"in Optical Amplifiers and Their Applications Tech. Dig.,, Vail, CO: 1999, pp. 87-90.
  11. Y. Sun, J. L. Zyskind, A. K. Srivastava and L. Zhang, "Analytical formula for the transient response of erbium-doped fiber amplifiers", Appl. Opt., vol. 38, pp. 1682 -1685, 1999.
  12. E. Desurvire, Erbium-Doped Fiber Amplifiers, New York: Wiley, 1994, ch. 4.
  13. N. Nakaji, M. Kakui, Y. Nakai and M. Nishimura, "Dynamic gain excursion suppression in high-speed automatically gain controlled EDFA's using an optical delay line,"in Optical Amplifiers and Their Applications Tech. Dig.,, Italy 2001, pp. OTuE5-1-OtuE5-3.

Appl. Opt. (1)

J. Lightwave Technol. (2)

S. Zemon, A. Budman, R. Wei, E. Eichen and K. T. Ma, "Decay of transmitted light during fiber breaks: Implications of break location", J. Lightwave Technol., vol. 12, pp. 1532-1535, Sept. 1994.

K. Motoshima, N. Suzuki, K. Shimizu, K. Kasahara, T. Kitayama and T. Yasui, "A channel-number insensitive erbium-doped fiber amplifier with automatic gain and power regulation function", J. Lightwave Technol., vol. 19, pp. 1759-1767, Nov. 2001.

Other (10)

C. Wang and G. J. Cowle, "Optical gain control of Erbium-doped fiber amplifiers with a saturable absorber,"in Optical Amplifiers and Their Applications Tech Dig.,, Vail, CO: 1999, pp. 110-113.

Y. Liu, M. Sharma and M. F. Krol, "Dual-cavity optical gain control for EDFA's and EDFA cascades,"in Optical Amplifiers and Their Applications Tech. Dig.,, Vail, CO: 1999, pp. 115 -117.

J. F. Massicott, S. D. Willson, R. Wyatt, J. R. Armitage, R. Kashyap, D. Williams and R. A. Lobbett, "1480 nm pumped erbium-doped fiber amplifier with all optical automatic gain control", Electron. Lett., vol. 30, pp. 962-964, 1994.

M. Fukutoku and M. Jinno, "Pump power reduction of optical feedback controlled EDFA using electrical feedforward control,"in Optical Amplifiers and Their Applications Tech. Dig.,, Vail, CO: 1998, pp. 32 -34.

S. Sergeyev, E. Vanin and G. Jacobsen, "Gain-clamped dynamics in EDFA with combined electronic feed-forward-Optical feedback control", in OFC Tech. Dig., Anaheim, CA, 2002, pp. 518-519 and references therein.

C. Tian and S. Kinoshita, "Novel solution for transient control of WDM amplifiers using the combination of electrical feedforward and feedback", in CLEO'02 Tech. Dig., Long Beach, CA, p. 430.

H. Nakaji, M. Kakui and M. Nishimura, "Wavelength dependent gain dynamics in Erbium-doped fiber amplifiers for multiwavelength optical networks,"in Optical Amplifiers and Their Applications Tech. Dig.,, Vail, CO: 1999, pp. 87-90.

E. Desurvire, Erbium-Doped Fiber Amplifiers, New York: Wiley, 1994, ch. 4.

N. Nakaji, M. Kakui, Y. Nakai and M. Nishimura, "Dynamic gain excursion suppression in high-speed automatically gain controlled EDFA's using an optical delay line,"in Optical Amplifiers and Their Applications Tech. Dig.,, Italy 2001, pp. OTuE5-1-OtuE5-3.

S. Kinoshita, C. Oshima, H. Itoh, T. Kobayashi, Y. Sugaya and T. Okiyama, "Wide dynamic-range WDM optical amplifiers for 32 × 10 Gb/s, SMF transmission systems,"in Optical Amplifiers and Their Applications Tech. Dig., Vail, CO: 1998.

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