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Conferences > OFC > 1993 > TuI > TuI5
  • Conference on Optical Fiber Communication/International Conference on Integrated Optics and Optical Fiber Communication
  • 1993 OSA Technical Digest Series (Optica Publishing Group, 1993),
  • paper TuI5
  • •https://doi.org/10.1364/OFC.1993.TuI5

Dynamic compensation of transient gain saturation in erbium-doped fiber amplifiers by pump feedback control

K. Motoshima, D. N. Chen, L. M. Leba, M. M. Downs, T. Li, and E. Desurvire

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Abstract

In frequency-division-multiplexed (FDM) or packet-switched systems, the input power of erbium-doped fiber amplifiers (EDFA's) can vary as slowly as the dynamic gain of EDFA’s, thus causing a saturation-induced power penalty.1,2 Various methods for the compensation of transient gain saturation based on pump feedforward,1 pump feedback,3 and signal feedback4 have been reported. In this paper we describe a method of transient gain control in an EDFA based on a novel scheme for pump feedback loops. We also investigate theoretically the dynamic response of the control loop to square-input signal pulses.

© 1993 Optical Society of America

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