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Descripción
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| In this paper, we have analyzed the interaction of semiconductor laser chirp with the fiber chromatic dispersion characteristics in order to study the impact on a WDM directly modulated system performance. Also, we have demonstrated that the system transmission performance depends, strongly, on the DML (Directly Modulated Laser) output power and its adiabatic and transient chirp parameters. We have calculated by simulation, that the effect of directly modulated lasers chirp can be compensated by a negative dispersion fiber in a specific range of a DML output power, and that a pulse broadened by the positive dispersion fiber can be equalized using self-phase-modulation (SPM) in the optical fiber. The majority of metro and access networks are made up of conventional single-mode fibers (SMF) which are positive dispersion fibers. We have demonstrated that the optimum compensation is always feasible for such fibers by changing the optical output power in the DML laser and if it is properly chosen. Furthermore, simulations suggest that this technique is able to enhance the performance of directly modulated wavelength division multiplexed systems if the power of each channel is appropriated. | |
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Internacional
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Si |
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Nombre congreso
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Fourth International Conference on Advances in Circuits, Electronics and Micro-electronics |
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Tipo de participación
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960 |
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Lugar del congreso
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Nice/Saint Laurent du Var, France |
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Revisores
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Si |
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ISBN o ISSN
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978-1-61208-150-2 |
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DOI
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Fecha inicio congreso
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21/08/2011 |
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Fecha fin congreso
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27/08/2011 |
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Desde la página
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17 |
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Hasta la página
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22 |
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Título de las actas
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Proc. CENICS 2011 |