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Academic literature on the topic 'Réseaux optiques passifs (PONs)'
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Journal articles on the topic "Réseaux optiques passifs (PONs)"
-Duthilleul, F. "Architectures et évolutions des réseaux optiques passifs." Revue de l'Electricité et de l'Electronique -, no. 05 (2002): 77. http://dx.doi.org/10.3845/ree.2002.058.
Full textMur, Jean-Michel. "Raccordement des fibres optiques à l’habitat - FTTH." Photoniques, no. 99 (November 2019): 36–39. http://dx.doi.org/10.1051/photon/20199936.
Full textDUTHILLEUL, François. "Réseaux optiques passifs." Réseaux Télécommunications, August 2001. http://dx.doi.org/10.51257/a-v1-te7119.
Full textDissertations / Theses on the topic "Réseaux optiques passifs (PONs)"
Cao, Zhihui. "Radio over fiber enabling PON fronthaul in a two-tiered cloud." Master's thesis, Université Laval, 2016. http://hdl.handle.net/20.500.11794/27051.
Full textWith the advent of IoT (internet of things) bandwidth requirements triggered by aggregated wireless connections have exceeded the fundamental limitation of copper and microwave based wireless backhaul and fronthaul networks. High capacity photonic fronthaul systems employing radio over fiber technology has been proposed as the ultimate solution for 5G wireless system. To maximize utilization of server and network resources, cloud computing and storage based services are being deployed. In this manner, centralized resources could be dynamically streamed to the end user as requested. Since on demand resource provision requires the orchestration between the server and network infrastructure, a smart photonic (physical layer)PHY enabled cloud is foreseen to support network virtualization and software defined network. RSOAs (Reflective Semiconductor Optical Amplifier) are being investigated as key enablers of the colorless ONU(Optical Network Unit) solution in PON (Passive Optical Network). We examine the use of an RSOA in radio over fiber systems to transport wireless signals over a PON simultaneously with digital data. Radio over fiber systems with flexible wavelength allocation could be achieved thanks to the colorless operation of the RSOA and wavelength reuse technique. The wavelength flexibility in optical PHY are inline with the paradigm of software defined network (SDN) in OSI layer 2/3. The orchestration between optical PHY and network switching fabric could be realized by extending the SDN controller to include optical layer handlers. Network virtualization could also benefit from the flexible optical PHY through dynamic and tailored optical network resource provision. In this thesis, we investigate an optical PHY system based on RSOA enabling both analog wireless signal and digital On-Off Keying (OOK) transportation within WDM (Wavelength Division Multiplexing) PON architecture. The RSOA has been characterized to show its potential ability to handle high dynamic range analog wireless signal. Then the RF and IF radio over fiber scheme is compared with its pros and cons. Finally we perform the experiment to shown a point to point WDM link with full duplex transmission of analog WiFi signal with downlink OOK signal. By introducing two RF mixer in the uplink, we have solved the incompatible problem with TDD (Time Division Duplex) based wireless system.
Barthomeuf, Sylvain. "Augmentation de la capacité des interfaces PONs TDMA au-delà de 10Gbit/s dans les réseaux d’accès en fibres optiques." Electronic Thesis or Diss., Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLT052.
Full textThe optical access network is booming, especially with the massive deployment of FTTH connecting clients’ home and antenna sites for the incoming 5G. The fiber’s popularization and the transformation of data consumption drive the bitrate growth. Many solutions are proposed. In this thesis, the passive optical network’s (PON) bitrate growth will be studied along three axes :• PAM4 to reuse 10GHz optoelectronical components to reach 25Gbit/s. This four levels modulation format is more bandwidth efficient than NRZ and it allows to transmit two bitratesas the same time on a PON tree. Within the first chapter, optical amplification is studied to enhance the optical budget for a PAM4 transmission. Last part of the chapter presents asimulation based on the real-time experiment to simulate PAM8.• Three vendors’ solutions for the throughput growth. The first prototype is based on theNG-PON2 standard and its PtP WDM option. The second prototype demonstrates how to transmit 25Gbit/s with duobinary and vestigial side band modulation. The last prototype illustrates a youthful solution for 5G fronthauling with a PtP WDM system transmitting at 25Gbit/s.• Equalization in PON’s context. Signal processing and equalization are common in optical transport links. With the throughput rising, equalization in access network seems indispensable. In the chapter, an implementation of equalization is proposed congruently with point-to-multipoints PON application and compliantly with access network’s cost needs and topology
Lebreton, Aurélien. "Allocation dynamique de ressources basée sur un multiplexage radio-fréquence pour les futurs réseaux d'accès optique passifs." Thesis, Lorient, 2015. http://www.theses.fr/2015LORIS381.
Full textThis thesis is part of the growing capacity of passive optical access networks. The works done during this thesis are based on the fact that current technologies, employing time division multiplexing, will reach their limits in the coming years and will no longer respond to changes in high bitrates requirements. The study of problems encountered during the current deployments led us to propose another form of multiplexing more suitable for bitrates requested by users: the FDM/FDMA PON, frequency division multiplexing. The work done in this thesis aim to demonstrate the feasibility of a such architecture in the laboratory. The objectives are to determine the achievable capacity, whether for the downlink (from central office to user) or the uplink (subscriber to central), but also to achieve a theoretical study to highlight the limitations of this solution. Algorithms for dynamic allocation of resources have been developed and validated experimentally to determine the total capacity of each link. The architecture using two distinct wavelengths (one for the downlink and one for the uplink) achieves a capacity of 40Gbps for the downlink and 20Gbps for the uplink by using FDM/FDMA PON. Finally, a hybrid architecture using a single wavelength to transport both uplink and downlink data has been explored and achieves a symmetrical capacity of 25Gbps
Simon, Gaël. "Introduction des technologies de multiplexage en longueur d'onde dense dans les futures générations de réseaux d'accès optique." Thesis, Paris, ENST, 2016. http://www.theses.fr/2016ENST0076/document.
Full textInitially led by the residential market, today’s optical access network evolutions are stimulated by mobile network expansion. As shown in the first chapter of this document, dense wavelength division multiplexing is one of the favorite solutions in order to increase optical access networks throughput. In this thesis, we propose a study of dense wavelength division multiplexing introduction according to three main topics :• Service providers and equipment suppliers have decided that the next step in residential market evolution will consist in a hybridization between, on one hand, a legacy time division multiplexing, and on the other hand, a dense wavelength division multiplexing. Named NG-PON2, this technology allows today 40Gb/s to 80Gb/s thanks to 4 to 8 channel pairs. Wavelength stability of the upstream emitter under burst mode operation, and related solutions, are studied in the second chapter.• Market importance (for both residential market and mobile networks) requires the different technologies generations to coexist on the same infrastructure. Due to the high optical power and the wavelength spans allocated to each technology, this coexistence can lead to technologies interactions by stimulated Raman scattering, as described in the third chapter.• Finally, the fourth part of this document describes the limits and potentialities of the self-seeded emitter technology for O-band dense wavelength division multiplexing, able to automatically and passively self-stabilize the wavelength of each emitter
Simon, Gaël. "Introduction des technologies de multiplexage en longueur d'onde dense dans les futures générations de réseaux d'accès optique." Electronic Thesis or Diss., Paris, ENST, 2016. http://www.theses.fr/2016ENST0076.
Full textInitially led by the residential market, today’s optical access network evolutions are stimulated by mobile network expansion. As shown in the first chapter of this document, dense wavelength division multiplexing is one of the favorite solutions in order to increase optical access networks throughput. In this thesis, we propose a study of dense wavelength division multiplexing introduction according to three main topics :• Service providers and equipment suppliers have decided that the next step in residential market evolution will consist in a hybridization between, on one hand, a legacy time division multiplexing, and on the other hand, a dense wavelength division multiplexing. Named NG-PON2, this technology allows today 40Gb/s to 80Gb/s thanks to 4 to 8 channel pairs. Wavelength stability of the upstream emitter under burst mode operation, and related solutions, are studied in the second chapter.• Market importance (for both residential market and mobile networks) requires the different technologies generations to coexist on the same infrastructure. Due to the high optical power and the wavelength spans allocated to each technology, this coexistence can lead to technologies interactions by stimulated Raman scattering, as described in the third chapter.• Finally, the fourth part of this document describes the limits and potentialities of the self-seeded emitter technology for O-band dense wavelength division multiplexing, able to automatically and passively self-stabilize the wavelength of each emitter
Hannachi, Abir. "Block turbo codes for next generation optical communications." Electronic Thesis or Diss., Ecole nationale supérieure Mines-Télécom Atlantique Bretagne Pays de la Loire, 2025. http://www.theses.fr/2025IMTA0462.
Full textThis thesis studies the application of Reed Solomon (RS) product codes in optical communication systems, with a focus on improving error correction and optimizing system performance while reducing complexity. This allows the use of low-cost components, a crucial factor in optical access networks where cost is a key consideration. The thesis introduces Passive Optical Networks (PON) and their advances, with emphasis on Point-to-Point (PtP) configurations. It also discusses the need for reliable error correction and explores the channel coding theory, in particular RS codes, their construction, properties and decoding. An important contribution of this thesis is the association of RS codes with Single Parity Check (SPC) codes, analyzed through performance simulations with dynamic packet sizes. Lastly, the thesis evaluates the performance of low-complexity RS product codes in optical channels, particularly in downstream and upstream 50 and 100 Gb/s systems using NRZ and pulse amplitude modulation (PAM4) with intensity modulation and direct detection (IM/DD). The findings show that RS-based product codes improve error correction in optical networks, enhancing reliability while balancing cost and complexity
Nguyen, Quoc Thai. "Émetteurs achromatiques pour le réseau d'accès optique haut débit multiplexé en longueurs d'onde." Phd thesis, Université Rennes 1, 2011. http://tel.archives-ouvertes.fr/tel-00598529.
Full textHumbert, Georges. "Etude et réalisation de composants passifs tout-fibre : réseaux longue période par arc électrique." Rouen, 2002. http://www.theses.fr/2002ROUES058.
Full textLong period fibre gratings are passive components used in optical telecommunication or instrumentation fields. The gratings are obtained by creating a modulation of the opto-geometrical fibre parameters with a periodicity of few hundred micrometers. They induce at a resonance wavelength, a co-directional coupling between the fundamental mode and a cladding mode. A large bandwidth filter is thus obtained. A theoretical study based on coupled mode theory is realised, so as to dissociate the influence of their several parameters on the transmitted spectrum. Simulations of complex long period fibre gratings are also presented. In this study, the gratings are fabricated by applying electrical discharges on the optical fibre. The properties of this new method are deeply investigated with the help of several characterisations. One of the interests of this method is to make pass-band filters by introducing phase shifts in the gratings. The association of the grating properties with those of special optical fibres (dual concentric cores fibre, Ge-free air-silica microstructure fibre) is also investigated. Finally, a new process for making fused fibre couplers using a CO2 laser as heating source, is presented in annex
Mantelet, Guillaume. "Étude de la problématique et des solutions de surveillance de réseaux optiques passifs." Mémoire, École de technologie supérieure, 2007. http://espace.etsmtl.ca/588/1/MANTELET_Guillaume.pdf.
Full textQuetel, Lionel. "Etude et réalisation de dispositifs actifs ou passifs utilisant des réseaux de Bragg photoinscrits dans des fibres optiques monomodes." Lille 1, 1997. http://www.theses.fr/1997LIL10124.
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