Reduction of the four wave mixing in optically amplified links by reducing pulse overlapping

We report a theory on the four wave mixing that permits to evaluate the signal degradation in WDM systems with a bandwidth located at the zero dispersion wavelength of the fiber link, taking into account the pulse duration of the signal. Numerical simulations confirm this theory showing how systems...

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Bibliographic Details
Published in:Optics communications 2000-07, Vol.181 (4), p.407-411
Main Authors: Matera, F, Settembre, M, Tamburrini, M, Zitelli, M, Turitsyn, S
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Nonlinear optics
Optical communication systems, multiplexers, and demultiplexers
Optics
Phase conjugation, optical mixing, and photorefractive effect
Phase conjugation, optical mixing
photorefractive and kerr effects
Physics
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
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Summary:We report a theory on the four wave mixing that permits to evaluate the signal degradation in WDM systems with a bandwidth located at the zero dispersion wavelength of the fiber link, taking into account the pulse duration of the signal. Numerical simulations confirm this theory showing how systems based on 16×2.5 and 16×10 Gbit/s can operate also at the zero dispersion wavelength if the pulse overlapping is limited by the use of suitable values of the pulse duration and of the delay among the input signals located at different frequencies.
ISSN:0030-4018
1873-0310
DOI:10.1016/S0030-4018(00)00769-0