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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 24, Iss. 8 — Aug. 1, 2007
  • pp: 1739–1748

Design and analysis of dynamic erbium-doped fiber amplifier gain-clamping systems with feedback control

Hao Li, Ying Zhang, Yeng Chai Soh, and Changyun Wen  »View Author Affiliations


JOSA B, Vol. 24, Issue 8, pp. 1739-1748 (2007)
http://dx.doi.org/10.1364/JOSAB.24.001739


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Abstract

We present an accurate and quantitative design scheme for erbium-doped fiber amplifier (EDFA) gain control systems. The proposed design scheme is demonstrated through the design of an eight-channel EDFA gain-clamping system with an all-optical self-tuning feedback loop. The effect of the time delay in the feedback loop and the selection of feedback wavelength are theoretically analyzed. Compared with existing electrical–optical EDFA gain schemes, the proposed design scheme is free from the feedback loop response speed limitation and does not need any predetermined information of the network traffic variation or operation point estimation. It can efficiently enhance the static and dynamic performance of the whole system. Furthermore, since the design can efficiently suppress the relaxation oscillation transient, it provides a cost-effective solution for the gain-clamping problem of a long EDFA chain by combining it with a fast-link control method.

© 2007 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.2330) Fiber optics and optical communications : Fiber optics communications
(140.3510) Lasers and laser optics : Lasers, fiber

ToC Category:
Fiber Lasers and Amplifiers

History
Original Manuscript: October 20, 2006
Revised Manuscript: February 12, 2007
Manuscript Accepted: February 15, 2007
Published: July 19, 2007

Citation
Hao Li, Ying Zhang, Yeng Chai Soh, and Changyun Wen, "Design and analysis of dynamic erbium-doped fiber amplifier gain-clamping systems with feedback control," J. Opt. Soc. Am. B 24, 1739-1748 (2007)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-24-8-1739


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References

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