NDLI: Doped-fiber amplifier dynamics: a system perspective

Content Provider	IEEE Xplore Digital Library
Author	Bononi, A. Rusch, L.A.
Copyright Year	1983
Abstract	Sun et al. [see Electron. Lett., vol. 32, p. 1490, Aug. 1996] succeeded in reducing the set of coupled first-order nonlinear partial differential equations determining the wavelength-dependent, time-varying amplifier gain into a single ordinary differential equation (ODE). In this paper, we further simplify the ODE bringing into greater evidence the physical meaning of the amplification process, and greatly enhancing the utility of the ODE as an analysis and design tool. We find that the gain dynamics of a doped-fiber amplifier are completely specified by its total number of excited ions r, whose time behavior is described by a simple first-order differential equation. We exploit this new understanding of amplifier gain dynamics: 1) to develop an equivalent circuit model for amplifier gain dynamics, 2) to identify that channel addition causes much faster transients than channel dropping in wavelength division multiplexing networks, and 3) to demonstrate that gain excursions can be significant in multichannel packet switching applications, which unlike time-multiplexed signals are characterized by bursts and lulls in communications. We are also able to revisit the most significant previously published results on both steady-state and dynamic analysis of doped-fiber amplifiers with a much more concise and more intuitive derivation.
Sponsorship	IEEE Lasers and Electro-Optics Society Optical Society of America
Starting Page	945
Ending Page	956
Page Count	12
File Size	478612
File Format	PDF
ISSN	07338724
Volume Number	16
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-05-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Doped fiber amplifiers Differential equations Nonlinear dynamical systems Sun Electrons Couplings Partial differential equations Differential amplifiers Equivalent circuits Wavelength division multiplexing
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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