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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 19, Iss. 1 — Jan. 1, 2002
  • pp: 63–74

Complex-cubic Ginzburg–Landau equation-based model for erbium-doped fiber-amplifier-supported nonreturn-to-zero communications

Nikos Efremidis and Kyriakos Hizanidis  »View Author Affiliations


JOSA B, Vol. 19, Issue 1, pp. 63-74 (2002)
http://dx.doi.org/10.1364/JOSAB.19.000063


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Abstract

The propagation of nonreturn-to-zero pulses, composed by a superposition of two exact shock-wave solutions of a complex-cubic Ginzburg–Landau equation linearly coupled to a linear nondispersive equation, is studied in detail. The model describes the distributed (average) propagation in a dual-core erbium-doped fiber-amplifier-supported optical-fiber system where stabilization is achieved by means of short segments of an extra lossy core that is parallel and coupled to the main one. The linear-stability analysis of the two asymptotic states of the shock wave in combination with direct numerical simulations provide necessary conditions for optimal propagation of the nonreturn-to-zero pulse. The enhancement of the propagation distance by at least an order of magnitude, under a suitable choice of the parameters, establishes the beneficial role of the passive channel.

© 2002 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
(060.2410) Fiber optics and optical communications : Fibers, erbium
(060.5530) Fiber optics and optical communications : Pulse propagation and temporal solitons
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons

Citation
Nikos Efremidis and Kyriakos Hizanidis, "Complex-cubic Ginzburg–Landau equation-based model for erbium-doped fiber-amplifier-supported nonreturn-to-zero communications," J. Opt. Soc. Am. B 19, 63-74 (2002)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-19-1-63

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