Auswahl der wissenschaftlichen Literatur zum Thema „Communications sur fibre optique“
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Zeitschriftenartikel zum Thema "Communications sur fibre optique"
Dejean, Sylvain, und Sophie Tarascou. „À qui profite la fibre ? Estimation des besoins en très haut débit et déploiement de la fibre optique en France“. Canadian Journal of Regional Science 45, Nr. 2 (13.09.2022): 69–88. http://dx.doi.org/10.7202/1092247ar.
Der volle Inhalt der QuelleKopp, Christophe, Stéphane Bernabe, Mohand Achouche und Sébastien Le Beux. „Photonique sur silicium : des réseaux à fibres au traitement optique de données“. Photoniques, Nr. 98 (September 2019): 24–27. http://dx.doi.org/10.1051/photon/20199824.
Der volle Inhalt der QuelleLefebvre, Jean-Etienne, und Patrick Corlay. „Présentation d’un Kit pédagogique complet pour l’enseignement des transmissions sur fibre optique.“ J3eA 21 (2022): 2044. http://dx.doi.org/10.1051/j3ea/20222044.
Der volle Inhalt der QuelleFanjoux, Gil, Jérôme Salvi, Jean-Charles Beugnot und Thibaut Sylvestre. „Lumière supercontinuum et plasmons de surface dans une valise !“ Photoniques, Nr. 112 (2022): 22–25. http://dx.doi.org/10.1051/photon/202211222.
Der volle Inhalt der QuelleBelleville, C., G. Duplain und A. Bergeron. „SYSTEME DE PESÉE EMBARQUÉ BASÉ SUR DES JAUGES EXTENSOMÉTRIQUES PAR FIBRE OPTIQUE“. Transactions of the Canadian Society for Mechanical Engineering 17, Nr. 4B (Dezember 1993): 699–711. http://dx.doi.org/10.1139/tcsme-1993-0040.
Der volle Inhalt der Quelle-Lemaire, V. „Ingénierie et architecture des nouveaux réseaux sous-marins WDM sur fibre optique“. Revue de l'Electricité et de l'Electronique -, Nr. 05 (1997): 46. http://dx.doi.org/10.3845/ree.1997.061.
Der volle Inhalt der QuelleFouache, Eric, Adrien Marchiel, Alain Rabaute, Stéphane Desruelles, Christian Gorini, Nicoletta Bianchi, Raphaël Kerverdo und Sara Lafuerza. „Conséquences de la crue extrême du 2 octobre 2020 dans la vallée de la Roya (Alpes Maritimes) sur les réseaux de transport et de communication : leçons pour la reconstruction“. Flux N° 132, Nr. 2 (18.08.2023): 98–114. http://dx.doi.org/10.3917/flux1.132.0098.
Der volle Inhalt der QuelleGrossard, Ludovic, und François Reynaud. „Aloha : L’optique non linéaire et fibrée au service de la haute résolution en astronomie“. Photoniques, Nr. 117 (2022): 30–35. http://dx.doi.org/10.1051/photon/202211730.
Der volle Inhalt der QuelleNeves, Nuno Miguel. „Sur le pavé la fibre optique: Para uma (In)Definição da Arqueologia dos Media“. Matlit Revista do Programa de Doutoramento em Materialidades da Literatura 3, Nr. 1 (28.10.2015): 284–87. http://dx.doi.org/10.14195/2182-8830_3-1_24.
Der volle Inhalt der QuelleVergniault, Christophe, Edouard Buchoud, Joséphine Boisson-Gaboriau und Amélie Hallier. „Application des méthodes géophysiques pour le diagnostic de l’aléa cavités sur des ouvrages de grands linéaires, en contexte ferroviaire et hydraulique“. Revue Française de Géotechnique, Nr. 172 (2022): 3. http://dx.doi.org/10.1051/geotech/2022006.
Der volle Inhalt der QuelleDissertationen zum Thema "Communications sur fibre optique"
Nanni, Jacopo. „High performance, low cost and low consumption Radio over fiber Systems for diversified communications applications“. Thesis, Paris Est, 2018. http://www.theses.fr/2018PESC1162/document.
Der volle Inhalt der QuelleThis dissertation aims to analyze the possibility of improving in terms of cost and consumption the future Radio-over-Fiber (RoF) systems in different telecommunication scenarios, such as current and next generation of cellular networks and in other applications such as Radio Astronomy. The RoF system studied is hence composed of a Vertical Cavity Surface Emitting Laser (VCSEL) operating at 850 nm, standard single mode fiber (SSMF) and SiGe Heterojunction Phototransistor (HPT), adopting the technique called Intensity Modulation{Direct Detection which is nowadays the cheapest and simplest architecture for RoF. This dissertation describes in detail the multimode propagation within the SSMF (designed to operate only at 1310 nm and 1550 nm) which is present at 850 nm. Through a developed mathematical model, the two-modes propagation is described and the main phenomena involved are analyzed. In particular, the model focus on intermodal dispersion and modal noise which are considered the two main contributions of performance detrimental. The model developed is able to identify the main parameters which contribute to enhance the detrimental effects produced by intermodal dispersion and modal noise both in frequency and time domain. Starting from the model, possible techniques to improve the performances are then proposed. In particular, a pre-filtering technique is realized in order to avoid the excitation of the second order mode, allowing a quasi-single-modepropagation within the SSMF. The technique is theoretically and experimentally validated either for single radio frequency sinusoidal transmission either for bandpass signal transmission centered in radio frequency band. In particular it is demonstrated experimentally the possibility of increasing the modulationbandwidth of the RoF system, reducing at the same time the fluctuations of power and gain. Furthermore, the technique is validated in a real LTE transmission system, making the RoF technology proposed able to transmit 256-QAM LTE signal of 20 MHz bandwidth, confirming the possibility of using this technology to decrease the overall cost and consumption of the network. Further work hasbeen done on the mathematical model. In particular the two modes propagation is exploited reversely in order to characterize the chirp parameter of the VCSEL employed. Finally, the problem of coupling between fiber and opto-electronic devices is also discussed and investigated, in order to enhance theperformances while keeping low the cost. The possibility of utilizing a collective and passive ploymerbased structure for coupling the optical fiber with small area photodetectors and VCSEL is presented, showing important improvements on coupling efficiency and tolerance to misalignment
Lefebvre, Kim. „Technique de réutilisation de longueur d'onde optique dans des applications RoF basée sur les RSOA pour des communications bidirectionnelles OOK et OFDM“. Master's thesis, Université Laval, 2019. http://hdl.handle.net/20.500.11794/37718.
Der volle Inhalt der QuelleKhayatzadeh, Ramin. „Convergence des technologies optique et radio pour la génération dédiée aux communications aux fréquences supérieures à 60 GHz“. Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAT074/document.
Der volle Inhalt der QuelleThis Ph.D. investigates the radio over fiber communication systems at mm-wave frequencies higher than 60 GHz. The thesis elaborates on three crucial issues in these systems including:phase noise measurement of unstable optically generated mm-wave signals, elimination ofphase noise impact on performance of radio over fiber systems using non-coherent down conversion technique, and studying the amplitude noise impacts on performance of system based on these detectors. In the first part of this work, a new digital phase noise measurement technique is presented which is able to extract the phase noise of any unstable mm-waveoptically generated signal. This technique is able to measure the phase noise for a widerange of offset frequencies from close-in phase noise to far noise floor by adapting frequency resolution of measurement and without considering small angle approximation. In the second part, we present a radio over fiber system at mm-wave frequency based on non-coherent electrical frequency down conversion stage using an envelope detector which is robust against phase and frequency fluctuations of the optically generated carrier signal. Finally, a the oreticaland experimental study of amplitude noise impact on performance of radio over fiber systemsbased on non-coherent receivers is presented. In this study, a simulation technique based ontheory is developed which is able to determine, among different optical and electrical noise, the one which has the dominant effect on EVM results. This simulation technique is based onobserving the EVM evolution versus received optical power
De, Valicourt Guilhem. „Conception, fabrication, et évaluation de modulateurs déportés pour les réseaux d'accès et radio sur fibre“. Phd thesis, Télécom ParisTech, 2011. http://pastel.archives-ouvertes.fr/pastel-00677397.
Der volle Inhalt der QuelleBenzazaa, Mostafa. „Etude d'architectures de systèmes de transmission de signaux ULB RF et millimétriques avec lien optique : application à la Radio-sur-Fibre“. Paris 6, 2011. http://www.theses.fr/2011PA066218.
Der volle Inhalt der QuelleAudo, Frédéric. „Opto-alimentation et transmission de données par fibre optique pour les observatoires de fond de mer“. Phd thesis, Université de Bretagne occidentale - Brest, 2012. http://tel.archives-ouvertes.fr/tel-00782502.
Der volle Inhalt der QuelleGatti, Sylvain. „Inscription laser UV pulsé sur nouveau matériau hybride pour codeurs optiques intégrés“. Phd thesis, Montpellier 2, 2007. http://www.theses.fr/2007MON20238.
Der volle Inhalt der QuelleLa technologie sol-gel a déjà démontré son potentiel. Un nouveau matériau sol-gel hybride à polymérisation cationique de type Epoxy a été développé dans le but de la simplification de la synthèse et de l'amélioration des performances en particulier l'adhérence.
Ce travail a pour objectif le développement d'un banc d'écriture laser UV dans une couche Epoxy et l'établissement du protocole de fabrication associé. Ce procédé de polymérisation locale est une alternative prometteuse aux techniques lithographiques par masque.
Ce nouveau banc utilise un laser pulsé travaillant à faible longueur d'onde pour une meilleure résolution et une meilleure polymérisation.
Ce travail a montré la faisabilité de circuits complexes de type multiplexeurs WDM avec un procédé d'inscription à faible coût. Nous avons réalisé les premiers prototypes de circuits dédiés à la sélection multiple de longueurs d'onde pour le (dé)codage du CDMA optique spectral.
Gatti, Sylvain. „Inscription laser UV pulsé sur nouveau matériau hybride pour codeurs optiques intégrés“. Phd thesis, Université Montpellier II - Sciences et Techniques du Languedoc, 2007. http://tel.archives-ouvertes.fr/tel-00258256.
Der volle Inhalt der QuelleLa technologie sol-gel a déjà démontré son potentiel. Un nouveau matériau sol-gel hybride à polymérisation cationique de type Epoxy a été développé dans le but de la simplification de la synthèse et de l'amélioration des performances en particulier l'adhérence.
Ce travail a pour objectif le développement d'un banc d'écriture laser UV dans une couche Epoxy et l'établissement du protocole de fabrication associé. Ce procédé de polymérisation locale est une alternative prometteuse aux techniques lithographiques par masque.
Ce nouveau banc utilise un laser pulsé travaillant à faible longueur d'onde pour une meilleure résolution et une meilleure polymérisation.
Ce travail a montré la faisabilité de circuits complexes de type multiplexeurs WDM avec un procédé d'inscription à faible coût. Nous avons réalisé les premiers prototypes de circuits dédiés à la sélection multiple de longueurs d'onde pour le (dé)codage du CDMA optique spectral.
Liu, Jingtian. „Shaping Strategies to Embrace Nonlinear Effects in Optical Fiber Communications“. Electronic Thesis or Diss., Institut polytechnique de Paris, 2024. http://www.theses.fr/2024IPPAT007.
Der volle Inhalt der QuelleThe main impediment in long-distance communications is nonlinear interference (NLI), stemming from nonlinear effects in optical fibers. While Digital signal processing algorithms offer partial mitigation, the inherent nonlinear nature of the fiber, coupled with predominant dispersion effects, continues to challenge the increase of transmission throughputs. Addressing nonlinearity at the information source through signal modulation technology is at the heart of our research. Traditional modulation schemes, as spectral efficiency climbs, such as QAM, become increasingly susceptible to NLI while their Mean Squared Euclidean Distance (MSED) diminishes. While multi-dimensional (MD) modulation yields improved linear and partial nonlinear gains, it has not yet demonstrated tangible benefits. On the other hand, the emergence of probabilistic constellation shaping (PCS), preferred for its enhanced linear gain and compatibility with conventional modulation hardware and software, introduces additional NLI. Consequently, the design of nonlinear-tolerant PCS is emerging as a pivotal research direction. Our thesis begins with a novel MD modulation for uniformly distributed signals. Then, we propose a novel approach combining MD with PCS to examine performance variations. Delving into PCS, we investigate the enumerative sphere shaping distribution matcher (DM), initially from an MD stance, and design a DM optimized for nonlinear tolerance over shorter distances. Subsequently, we introduce a new NLI measurement technique, accounting for dispersion effects. Integrating this with the sequence selection framework of PCS, we achieve successful long-distance transmission with notable nonlinear gains
Shahkarami, Abtin. „Complexity reduction over bi-RNN-based Kerr nonlinearity equalization in dual-polarization fiber-optic communications via a CRNN-based approach“. Electronic Thesis or Diss., Institut polytechnique de Paris, 2022. http://www.theses.fr/2022IPPAT034.
Der volle Inhalt der QuelleThe impairments arising from the Kerr nonlinearity in optical fibers limit the achievable information rates in fiber-optic communication. Unlike linear effects, such as chromatic dispersion and polarization-mode dispersion, which can be compensated via relatively simple linear equalization at the receiver, the computational complexity of the conventional nonlinearity mitigation techniques, such as the digital backpropagation, can be substantial. Neural networks have recently attracted attention, in this context, for low-complexity nonlinearity mitigation in fiber-optic communications. This Ph.D. dissertation deals with investigating the recurrent neural networks to efficiently compensate for the nonlinear channel impairments in dual-polarization long-haul fiber-optic transmission. We present a hybrid convolutional recurrent neural network (CRNN) architecture, comprising a convolutional neural network (CNN) -based encoder followed by a recurrent layer working in tandem. The CNN-based encoder represents the shortterm channel memory arising from the chromatic dispersion efficiently, while transitioning the signal to a latent space with fewer relevant features. The subsequent recurrent layer is implemented in the form of a unidirectional vanilla RNN, responsible for capturing the long-range interactions neglected by the CNN encoder. We demonstrate that the proposed CRNN achieves the performance of the state-of-theart equalizers in optical fiber communication, with significantly lower computational complexity depending on the system model. Finally, the performance complexity trade-off is established for a number of models, including multi-layer fully-connected neural networks, CNNs, bidirectional recurrent neural networks, bidirectional long short-term memory (bi-LSTM), bidirectional gated recurrent units, convolutional bi-LSTM models, and the suggested hybrid model
Bücher zum Thema "Communications sur fibre optique"
1939-, Bass Michael, Van Stryland Eric W und Optical Society of America, Hrsg. Fiber optics handbook: Fiber, devices, and systems for optical communications. New York: McGraw-Hill, 2002.
Den vollen Inhalt der Quelle findenCommunications sur fibres optiques. HERMES SCIENCE, 2014.
Den vollen Inhalt der Quelle findenKonferenzberichte zum Thema "Communications sur fibre optique"
Khodashenas, Pouria Sayyad, José Manuel Rivas-Moscoso, Dimitrios Klonidis, Dan M. Marom und Ioannis Tomkos. „Evaluating the Optimum Filter Resolution and Sub-Channel Spectrum Granularity for Flexible Super-Channels“. In Optical Fiber Communication Conference. Washington, D.C.: OSA, 2015. http://dx.doi.org/10.1364/ofc.2015.w1i.5.
Der volle Inhalt der QuelleSingh, Gurpreet, und Maninder Lal Singh. „A new sub-optimum four-wave mixing minimization method and its comparative performance analysis for a fiber optic based information system“. In 2017 8th IEEE Annual Information Technology, Electronics and Mobile Communication Conference (IEMCON). IEEE, 2017. http://dx.doi.org/10.1109/iemcon.2017.8117144.
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