Power budget improvement of symmetric 40 Gb/s TWDM based PON2 system utilizing DMLs and DCF technique

In this paper, we propose to use optical dispersion compensation based on the widely deployed compensating fiber (DCF) employing directly modulated lasers (DMLs) to improve the power budget in a symmetric 40 Gb/s time and wavelength division multiplexed-passive optical network (TWDM-PON) systems. Th...

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Bibliographic Details
Published in:Optics Communications
Main Authors: Bindhaiq, S., Zulkifli, N., Supa'at, A. S. M., Idrus, S. M., Salleh, M. S.
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier B.V. 2018
Subjects:
TK Electrical engineering. Electronics Nuclear engineering
DML
Online Access:http://eprints.utm.my/83976/
http://eprints.utm.my/83976/1/SalemBindhaiq2018_PowerBudgetImprovementofSymmetric.pdf
https://doi.org/10.1016/j.optcom.2017.09.027
Description
Summary:In this paper, we propose to use optical dispersion compensation based on the widely deployed compensating fiber (DCF) employing directly modulated lasers (DMLs) to improve the power budget in a symmetric 40 Gb/s time and wavelength division multiplexed-passive optical network (TWDM-PON) systems. The DML output waveforms in terms of output optical power, bandwidth enhancement factor (a) characteristics are investigated in order to minimize the effect of DML chirp and improve the transmission performance. Simulation results show dispersion compensation of up to 140 km of SMF with power budget of 56.6 dB and less than 2 dB dispersion penalty. The feasibility of bandwidth enhancement factor and power budget is also investigated. The simulation results indicate sufficient dispersion compensation for TWDM-PON based on DML transmission, which may vary considerably in their practical demonstration due to different system characterization.

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