Émetteurs achromatiques pour le réseau d'accès optique haut débit multiplexé en longueurs d'onde

Abstract : To meet the ever-increasing bandwidth demand due to the rapid growth of broadband services, wavelength division multiplexed passive optical network (WDM-PON) has been considered as one of the most powerful candidates for the next-generation access network. However, the cost reduction and the flexibility are still key requirements to deploy this access technology. In this context, the objective of this thesis is to study the colorless transmitter solutions based on advanced optoelectronic components for WDM-PON. Two types of colorless transmitters based on reflective modulator technologies are studied: the injection-locked Fabry-Perot laser diode (IL-FP) and the reflective amplified modulator based on monolithic integration of R-EAM-SOA. The physical characterization of IL-FP under the injection-locking regime is investigated, including the locking efficiency, intensity noise, the direct modulation, the linewidth enhancement. The dependence of these properties onto injection parameters (injected power, wavelength detuning) is also determined. Both static and dynamic characterizations of R-EAM-SOA are performed. The advanced functionalities of R-EAM-SOA, including the optical detection and noise-mitigated regeneration, are demonstrated, which prove the high potential of this component for multifunctional device in optical access network. The quantum-dash mode-locked laser (QD-MLL) is proposed, for the first time, to be used as a coherent multi-wavelength seeding source for WDM-PON. The suppression of mode partition noise (MPN) of QD-MLL-based seeding source when combined with the studied reflective modulators is shown. The integration of these components in WDM-PON architectures is experimentally realized. The feasibility of 2.5 Gb/s per channel WDM-PON systems using IL-FP injected by QD-MLL-based seeding source is assessed for different network architectures. The scalability up to 10 Gb/s per channel of WDM-PON system using R-EAM-SOA injected by QD-MLL-based seeding source is demonstrated. A bidirectional WDM-PON architecture allowing a total capacity as high as 240 Gb/s in downstream and 60 Gb/s in upstream using the proposed colorless transmitter solutions is experimentally demonstrated. One of the principle impairments of bidirectional WDM-PON system is the Rayleigh backscattering (RB) effect from which the produced interferometric noise is studied. The impact of RB noise on WDM-PON transmission performances is also analyzed.
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Contributor : Quoc Thai Nguyen <>
Submitted on : Monday, June 6, 2011 - 4:47:13 PM
Last modification on : Friday, November 16, 2018 - 1:23:11 AM
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  • HAL Id : tel-00598529, version 1

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Quoc Thai Nguyen. Émetteurs achromatiques pour le réseau d'accès optique haut débit multiplexé en longueurs d'onde. Physique Atomique [physics.atom-ph]. Université Rennes 1, 2011. Français. ⟨NNT : 2011REN1E001⟩. ⟨tel-00598529⟩

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