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Dissertations / Theses on the topic 'Optical fibered networks'

Author: Grafiati

Published: 1 June 2024

Last updated: 31 July 2025

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1

May, Alix. "Novel receiver-based techniques for the monitoring of physical parameters in optical fiber networks." Electronic Thesis or Diss., Institut polytechnique de Paris, 2023. http://www.theses.fr/2023IPPAT013.

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Dans les réseaux à fibre optique, le monitoring massif a suscité un intérêt important pour leur permettre d'être plus autonomes et élastiques. Au fil des années, diverses techniques de monitoring basées sur le traitement numérique du signal côté récepteur ont été proposées. Ces techniques sont particulièrement intéressantes car elles ne nécessitent pas de matériel supplémentaire et sont moins coûteuses. Dans ma thèse, je me suis concentrée sur les techniques de monitoring de la puissance longitudinale d'un lien optique, basées sur l'analyse des effets de propagation non linéaires. Dans un prem

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2

Boiyo, Duncan Kiboi, and Romeo Gamatham. "Optimization of flexible spectrum in optical transport networks." Thesis, Nelson Mandela Metropolitan University, 2017. http://hdl.handle.net/10948/14609.

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The ever-increasing demand for broadband services by end-user devices utilising 3G/4G/LTE and the projected 5G in the last mile will require sustaining broadband supply from fibre-linked terminals. The eventual outcome of the high demand for broadband is strained optical and electronic devices. The backbone optical fibre transport systems and techniques such as dense wavelength division multiplexing (DWDM), higher modulation formats, coherent detection and signal amplification have increased both fibre capacity and spectrum efficiency. A major challenge to fibre capacity and spectrum efficienc

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3

Bignell, Allan M. "Photonic bus and photonic mesh networks : design techniques in extremely high speed networks /." *McMaster only, 1997.

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4

Haris, Muhammad. "Advanced modulation formats for high-bit-rate optical networks." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/24811.

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Thesis (Ph.D.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2008.<br>Committee Chair: Chang, Gee-Kung; Committee Co-Chair: Yu, Jianjun; Committee Member: Altunbasak, Yucel; Committee Member: Ji, Chunayi; Committee Member: Ralph, Stephen; Committee Member: Xu, Jun.

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5

Tariq, Sana. "Inside all-optical networks /." Online version of thesis, 2009. http://hdl.handle.net/1850/10960.

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6

Dods, Sarah D. "Homodyne crosstalk in wavelength-division multiplexed ring and cus networks /." Connect to thesis, 2000. http://eprints.unimelb.edu.au/archive/00000597.

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7

Zhang, Jian-Guo, and Zheng Li. "FIBER-OPTIC NETWORKS FOR TELEMETRY APPLICATIONS." International Foundation for Telemetering, 1992. http://hdl.handle.net/10150/608907.

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International Telemetering Conference Proceedings / October 26-29, 1992 / Town and Country Hotel and Convention Center, San Diego, California<br>In this paper, we investigate high-capacity fiber-optic networks for real-time telemetry applications. The network topologies and related network components are analyzed for telemetry fiber-optic Local Area Network (LAN) and Metropolitan Area Network (MAN) as well as MAN internetworking with LANs. Two types of multiplexing techniques, namely, Wavelength Division Multiplexing and Time Division Multiplexing, are proposed to support real-time high-c

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8

Ee, Chai Chuan. "The feasibility study of implementing a fiber optic local area network in software metrics laboratory in Ingersoll 158." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Mar%5FEe.pdf.

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Thesis (M.S. in Information Technology Management)--Naval Postgraduate School, March 2004.<br>Thesis advisor(s): Norman F. Schneidewind. Includes bibliographical references (p. 51). Also available online.

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9

Mysore, Sudhesh M. "Advances in optical power budgets and bandwidth capacity of broadband networks /." free to MU campus, to others for purchase, 1999. http://wwwlib.umi.com/cr/mo/fullcit?p9953885.

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10

Angeh, Wolfgang Ondua. "Design and performance analysis of a survivable metropolitan area fiber optic communication network." Master's thesis, This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-02022010-020030/.

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11

Ganti, Sudhakar N. M. "Access protocols and network architectures for very high-speed optical fiber local area networks." Thesis, University of Ottawa (Canada), 1993. http://hdl.handle.net/10393/6917.

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The single mode optical fiber possesses an enormous bandwidth of more than 30 THz in the low-loss optical region of 1.3 $\mu$m and 1.5 $\mu$m. Through Wavelength Division Multiplexing (WDM), the optical fiber bandwidth can be divided into a set of high-speed channels, where each channnel is assigned its own unique wavelength. An M x M passive optical star coupler is a simple broadcast medium, in which light energy incident at any input is uniformly coupled (or distributed) to all the outputs. Thus, a passive star along with the WDM channels can be used to configure a Local Area Network (LAN).

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12

West, Lamar. "Analysis and simulation of reverse path laser clipping in subcarrier multiplexed hybrid fiber coax networks." Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/13301.

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13

Rotich, Enoch Kirwa. "Fibre optic network supporting high speed transmission in the square kilometre array, South Africa." Thesis, Nelson Mandela Metropolitan University, 2015. http://hdl.handle.net/10948/6552.

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This thesis provides in-depth information on the high speed optical transport requirements for the Square Kilometre Array. The stringent data rates as well as timing and synchronization requirements are dealt with respect to the optical fibre technology. Regarding the data transport, we draw a clear comparison between a typical telecommunication access network and a telescope network. Invoking simulations and experiments on the field and laboratory test bed, we successfully implement a suitable telescope network using vertical cavity surface emitting laser (VCSEL) technology. Polarization effe

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14

Kelly, Anthony Edward. "Optimisation of semiconductor optical amplifiers for optical networks." Thesis, University of Strathclyde, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366966.

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15

Gamatham, Romeo Reginald Gunther. "Nonlinear effects with a focus on cross phase modulation and its impact on wavelength division multiplexing optical fibre networks." Thesis, Nelson Mandela Metropolitan University, 2013. http://hdl.handle.net/10948/6302.

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The demand for faster data transmission is ever increasing. Wavelength division multiplexing (WDM) presents as a viable solution to increase the data transmission rate significantly. WDM systems are based on the ability to transmit multiple wavelengths simultaneously down the fibre. Unlike time division multiplexing (TDM) systems, WDM systems do not increase the data transfer by increasing the transmission rate of a single channel. In WDM systems the data rate per channel remains the same, only multiple channels carry data across the link. Dense wavelength division multiplexing (DWDM) promises

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16

Štěpán, Petr. "Trendy přístupových sítí." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220562.

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This work deals with the modern trends in FTTX, but mainly focuses on FTTH, who represents the connecting of fiber to the homes of the participants. Sum up the basic problems of communication on the optical fibre, followed by comparison with other types of access networks. Another part is the analysis of the problems of construction and a description of the optical network topologies and technologies used in FTTH. In following chapter are characterized active and passive elements forming AON and PON networks. Next part deals with the study of the most common services that can be on the optical

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17

Xiao, Chunpeng. "Advanced link and transport control protocols for broadband optical access networks." Diss., Available online, Georgia Institute of Technology, 2006, 2006. http://etd.gatech.edu/theses/available/etd-11082006-183908/.

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Thesis (Ph. D.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2007.<br>Chang, Gee-Kung, Committee Chair ; Zhou, G.Tong, Committee Member ; Copeland, John, Committee Member ; Riley, George, Committee Member ; Ingram, Mary Ann, Committee Member ; Ammar, Mostafa, Committee Member.

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18

Smith, Craig Scott. "Implementing pipelined circuit switching on the PICA aligned offset cube topology." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/13362.

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19

Liu, Feng. "Symmetrically multi-connected optical fiber wide area networks." Thesis, University of Ottawa (Canada), 1994. http://hdl.handle.net/10393/6704.

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Self-routing all-optical WAN design is becoming more and more important in broadband communications. However, little has been done in this field. In this thesis, we propose a Multi-Dual Ring Connected Shuffle Network and a Multi-Shuffle Connected Shuffle Network for a WAN environment. The performance of the proposed architectures is studied under a uniform traffic pattern analytically and numerical results are provided. The Multi-Dual Ring Connected Shuffle Connected Networks are studied under the nonuniform traffic patterns with an analytical method 'extreme value analysis' and a simulation m

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20

Ferreira, João Carlos de Melo. "Fiber amplifiers in transparent and dynamic optical networks." Doctoral thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/14090.

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Doutoramento em Engenharia Eletrotécnica<br>In this thesis a study of optical fiber amplifiers in the context of transparent and dynamic optical networks is performed. We propose and validate a simplified model to estimate the gain profile and amplified spontaneous emission (ASE) noise of broadband counterpumped Raman fiber amplifiers (RFAs). The proposed model requires very low computational resources and it is suitable to be used in network planning tools. Based on the proposed model, we also present an algorithm to design flat gain counter-pumped RFAs for the extended C-band with lo

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21

Kondicz, Dávid. "Optický přenos informací - bezpečnost přenosu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-220547.

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The submitted work deals with issues of optical transmissions and its security. We will become familiar with a variety of transferability of information, based on which we can assess the advantages and disadvantages of each technology as compared to optical information transmission. Based on acquired information we will try to implement interception of optical communication of cable TV provider.

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22

Gest, Johann. "Discrete fiber Raman amplifiers for agile all-photonic networks." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=103199.

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This thesis is dedicated to the study of gain transients of discrete fiber Raman amplifiers and to the all-optical gain-clamping technique which is used to mitigate those transients.<br>First, we study the standing-wave and the traveling-wave gain-clamping techniques when applied to a single discrete fiber Raman amplifier in the context of WDM channel add and drop. We take into account the operational regime of the amplifier and the location of the surviving channel in the amplification band. We demonstrate that the gain-clamped amplifier has to be operated in a regime below the critical regim

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23

Doležal, Ondřej. "Experimentální práce s POF - polymerová optická vlákna." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-220395.

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In this diploma thesis, the reader is familiarized with polymer optical fiber (POF). Firstly is mentioned theoretical background of optical fibers and optical transmission. The following are the basic properties and significant parameters of POF, a more detailed description of each type POF and their essential advantages and disadvantages in comparison with established optical fibers based on glass. The next chapter describes the area of practical issues: working with fibers and fiber installation, as well as the available connectors and methods of measurement of POF. Closely are analyzed know

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24

Kalogerakis, Georgios. "Fiber optical parametric amplifiers and wavelength converters for next-generation optical networks /." May be available electronically:, 2007. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.

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25

Maamoun, Khaled M. "Deploying Monitoring Trails for Fault Localization in All-optical Networks and Radio-over-Fiber Passive Optical Networks." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/23195.

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Fault localization is the process of realizing the true source of a failure from a set of collected failure notifications. Isolating failure recovery within the network optical domain is necessary to resolve alarm storm problems. The introduction of the monitoring trail (m-trail) has been proven to deliver better performance by employing monitoring resources in a form of optical trails - a monitoring framework that generalizes all the previously reported counterparts. In this dissertation, the m-trail design is explored and a focus is given to the analysis on using m-trails with established li

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26

Chu, Guang Yong. "Photonic devices for next generation fiber-to-the-home access network." Doctoral thesis, Universitat Politècnica de Catalunya, 2016. http://hdl.handle.net/10803/386564.

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It would be unaffordable if the WDM-PON technologies were directly applied for massive deployment. Hence, the potential WDM-PON is to be integrated and improved in order to adapt it for NGPON and the future 5G. The UDWDM-PON can be considered as an ultimate solution for the next-generation access network capable of providing unlimited bandwidth for each user, thanks to the coherent detection. Plenty of scientists have believed that it is crucial to increase the operating speed and maximum reach of WDM-PON, while it has no sense if people achieve them without a ordable cost. In order to apply

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27

Quintana, Joel. "Hybrid optical network using incoherent optical code division multiple access via optical delay lines." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2009. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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28

Ito, Christopher Joshua Shiro. "All-optical 3R regeneration for agile all-photonic networks." Thesis, Kingston, Ont. : [s.n.], 2007. http://hdl.handle.net/1974/508.

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29

Vilar, Mateo Ruth. "Optical performance monitoring in optical packet-switched networks." Doctoral thesis, Universitat Politècnica de València, 2010. http://hdl.handle.net/10251/8926.

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Para poder satisfacer la demanda de mayores anchos de banda y los requisitos de los nuevos servicios, se espera que se produzca una evolución de las redes ópticas hacia arquitecturas reconfigurables dinámicamente. Esta evolución subraya la importancia de ofrecer soluciones en la que la escalabilidad y la flexibilidad sean las principales directrices. De acuerdo a estas características, las redes ópticas de conmutación de paquetes (OPS) proporcionan altas capacidades de transmisión, eficiencia en ancho de banda y excelente flexibilidad, además de permitir el procesado de los paquetes directamen

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30

Stark, Andrew Joseph. "16QAM for next-generation optical transport networks." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/47732.

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Fiber-optic networks are continually evolving to accommodate ever-increasing data transport rates demanded by modern applications, devices, and services. Network operators are now beginning to deploy systems with 100 Gb/s per-wavelength data rates while maintaining the 50 GHz dense wavelength division multiplexing grid that is (generally) standard for 10 Gb/s systems. Advanced modulation formats incorporating both amplitude- and phase-based data symbols are necessary to meet the spectral efficiency requirements of fiber-optic data transport. These modulation formats require coherent detection,

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31

Hausien, H. H. "Pulse position modulation for optical fiber local area networks." Thesis, University of Bath, 1991. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292804.

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32

Chen, David Yong. "The effects of noise in CATV distribution networks with star couplers and fiber amplifiers." Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-11102009-020312/.

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33

Balon, Jiří. "Měřící metody klíčových parametrů v optických sítích." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218247.

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The main goal of the master’s thesis was to familiarize with optical networks dilemma and its measuring during fabrication. The whole thesis is divided into several parts where the first part deals with optic fiber dilemma. It describes its kinds, properties and also suggests a basic principle of optic signal dispersion using these fibers. It describes also optical network FTTx architecture (Fiber To The x). The second part of the thesis focuses on methods of measuring key parameters of optical networks. Is brings out the methods of measuring optical loss and dispersive influences. The last an

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34

Vasseur, Jerome. "Multiwavelength laser sources for broadband optical access networks." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/11462.

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The objective of the proposed research is to develop multiwavelength lasers as cost-efficient sources for broadband optical access networks. Todays telecommunications networks have widely adopted optical fiber as the backbone transmission medium. Optical fiber systems are promising candidates for the broadband access networks to offer high-speed and future-proof services. To harness the available bandwidth in fiber and to meet the ever-growing bandwidth demand, wavelength division multiplexing (WDM) techniques have been investigated. There have been intense research activities for the creation

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35

Okonkwo, Igweani Uchenna Titus. "Optical fiber transmission systems for in-door next generation broadband access network." Thesis, Brunel University, 2014. http://bura.brunel.ac.uk/handle/2438/10539.

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This thesis investigates the generation and radio-over-fibre (RoF) transport of unlicensed 60 GHz millimetre-wave (mm-wave) frequency band. The investigated benefits of transmission schemes applicable for the mm-wave generation include optical carrier suppression (OCS), optical frequency multiplication (OFM) and remote heterodyne detection (RHD). For the in-door cabling of the mm-wave transmission, a low-cost polymer optical fibre (POF) along with bend-insensitive single mode fibre (BI-SMF) has been investigated for short-range networks. Transporting mm-wave generated signals over POF and BI-S

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36

Winkler, Aleš. "Parametry sítí FTTx - kvalita služeb." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219697.

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The main subject of this diploma thesis is to make a proposal to improve the optical access network for the transmission of Triple play services. I would here to the reader clarify method of proposal of optical network. There are described the kinds of optical access networks with parameters, for which we must look by their construction. There are described the modern methods of construction optical network too. In the theoretical part are discussed used architecture of networks too. I met here known standards, which I compared for big importance by their choice. A reason of construction of op

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37

Abu-Romoh, Mohanad. "Equalization in Optical Fiber Communication Using Model-based Neural Networks." Electronic Thesis or Diss., Institut polytechnique de Paris, 2023. http://www.theses.fr/2023IPPAT037.

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Répondre à la demande croissante de transmission de données à haute vitesse nécessite des solutions efficaces pour atténuer la non linéarité dans les systèmes de communication optique.Les méthodes traditionnelles telles que la rétropropagation numérique (DBP) sont confrontées à d’importants défis computationnels, les rendant impraticables pour les systèmes du monde réel.Les modèles de réseaux neuronaux ont émergé comme une approche prometteuse pour résoudre ce problème. Deux approches principales existent pour la conception de réseaux neuronaux : les méthodes agnostiques au modèle et les métho

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38

Čičmanský, Tomáš. "Možnosti zvýšení propustnosti optovláknové průmyslové sítě." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-220387.

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Diploma thesis deals with problems of industrial networks using optical fiber as the main transmission lines. The task of the diploma work is to study and summarize the issues of industrial networks as well as the ways to increase their transmission capacity. In telecommunications and computer networks are generally used multiplexes, thanks to which we are able to achieve the desired transmission capacity. Consequently, the following work deals with the selection of the adequate solutions using described multiplexes as well as other transmission methods. The aim of the diploma work is to compa

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39

Cen, Min. "Study on Supervision of Wavelength Division Multiplexing Passive Optical Network systems." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-42362.

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The wavelength-division-multiplexed passive optical network (WDM-PON) offers many advantages such as large bandwidth per user, easy management, high network security and low insertion loss enabling long-reach and/or high split-ratio. However, with the rapid development and growing interest for deployment of WDM-PON, the PON systems are becoming increasingly vulnerable to various failures. Therefore, network supervision becomes extremely important to guarantee an appropriate level of network reliability performance. The aim of PON supervision is to provide automated test and diagnostic capabili

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40

Wang, Evan Y. (Ye-Wen). "Traffic control in a multichannel optical fiber communication network." Thesis, Massachusetts Institute of Technology, 1987. http://hdl.handle.net/1721.1/14716.

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Cindoğlu, Beylem. "User Research and Development on Optical Fiber Network Installations." Thesis, KTH, Maskinkonstruktion (Inst.), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-198178.

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Detta examensarbete är ett projekt som genomförs på Infinera i Stockholm, Sverige. Projektet använder tjänsten designmetodik tillsammans med användarcentrerad design. Syftet med projektet är att undersöka och förbättra det dagliga arbetslivet för installatörer av fiberoptiska nät. Den aktuella tjänsten följer ett systemdrivet perspektiv. Detta projekt undersöker olika sätt att ändra ett systemdrivet perspektiv till ett användarcentrerat designperspektiv. Tjänstedesignmetoder används för att undersöka serviceprocessen och att samla insikter. Projektet inleds med en förberedelsefas, följt av loo

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Savage, Shelby Jay 1978. "All-optical interferometric switches for data regeneration in fiber optic networks." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/40509.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2007.<br>Includes bibliographical references.<br>In the thirty years since the installation of the first fiber optic data link, data rates in installed fiber links have risen from a few Mb/s to tens of Gb/s. In the laboratory, data rates in a single optical fiber have already reached tens of Tb/s. These data rates greatly exceed electronic processing rates, so researchers have turned to all-optical signal processing to achieve many basic network tasks, like wavelength conversion, packe

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43

Lee, Nancy Yushan. "Performance analysis of single mode optical fiber star networks with reflections." Thesis, Massachusetts Institute of Technology, 1990. http://hdl.handle.net/1721.1/14035.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1990.<br>Includes bibliographical references (leaves 53-54).<br>by Nancy Yushan Lee.<br>M.S.

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44

Gajdoš, Jaroslav. "Metodika měření optických sítí FTTH." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218131.

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The main topic of this master thesis is a FTTH measurement methodology of optical networks and its specific features 9 compared with other measurement methodologies. Also, the use of the FTTH measurement methodology: an example of measurements of a passive network with splitter 1:8 and analysis of the results of these experimental measurements. The first part of the thesis concerns itself with the description of optical networks and characteristics and features of the FTTH networks. A detailed description of the passive optical networks is provided: e.g. the optical network unit ONU, the optic

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Tebben, Daniel James. "Limitations and Improvement of Subcarrier Multiplexed Systems over Optical Fiber." Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/26968.

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Optical coherent techniques are used to eliminate the power fading found in optical subcarrier multiplexed systems. In a double-side band optical subcarrier system the signal experiences a periodic power fading that is dependent on the fiber dispersion and subcarrier frequency. This power fading is manifested during the direct detection of the subcarrier system using a square-law photodetector. Using a modified optical local oscillator to coherently detect the subcarrier channel this power fading can be eliminated. An optical local oscillator is centered at the optical carrier in order t

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46

Tanir, Oryal. "The design and analysis of nodes in a fiber optic based star network (STARNET) /." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61262.

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STARNET is a fiber optic based network which facilitates the interconnection of distributed Local Area Networks. Configured as a sixteen pointed star topology with a multiprocessor based controller at the center of the star (named the Central Switch). STARNET is capable of scheduling calls from users connected to User Access Nodes located at the points of the star. Messages are passed from one node to another through the Central Switch via duplex fiber optic lines connecting each node to the center.<br>This paper presents a multiprocessor based design of the User Access Node. The hardware and

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Zou, Ding, and Ding Zou. "FPGA-Based LDPC Coded Modulations for Optical Transport Networks." Diss., The University of Arizona, 2017. http://hdl.handle.net/10150/622985.

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Current coherent optical transmission systems focus on single carrier solutions for 400Gb/s serial transmission to support traffic growth in fiber-optics communications, together with a few subcarriers multiplexed solutions for the 1 Tb/s serial data rates and beyond. With the advancement of analog-to-digital converter technologies, high order modulation formats up to 64-QAM with symbol rate up to 72Gbaud have been demonstrated experimentally with Raman amplification. To enable such high serial data rates, it is highly desirable to implement in hardware low complexity digital signal processi

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Chen, Jiajia. "Design, analysis and simultion for optical access and wide-area networks." Doctoral thesis, KTH, Mikroelektronik och tillämpad fysik, MAP, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-10348.

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Due to the tremendous growth of traffic volume caused by both exponential increase of number of Internet users and continual emergence of new bandwidth demanding applications, high capacity networks are required in order to satisfactorily handle the extremely large amount of traffic. Hence, optical fiber communication is the key technology for the network infrastructure. This thesis addresses design, analysis and simulation of access and core networks targeting important research problems, which need to be tackled for the effective realization of next generation optical networks. Among differe

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49

Lin, Changyu. "Non-Binary Coded Modulation for FMF-Based Coherent Optical Transport Networks." Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/613281.

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The Internet has fundamentally changed the way of modern communication. Current trends indicate that high-capacity demands are not going to be saturated anytime soon. From Shannon's theory, we know that information capacity is a logarithmic function of signal-to-noise ratio (SNR), but a linear function of the number of dimensions. Ideally, we can increase the capacity by increasing the launch power, however, due to the nonlinear characteristics of silica optical fibers that imposes a constraint on the maximum achievable optical-signal-to-noise ratio (OSNR). So there exists a nonlinear capacity

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50

Li, Jonathan Chi Fai. "Eye closure penalty based signal quality metric for intelligent all-optical networks /." Connect to thesis, 2009. http://repository.unimelb.edu.au/10187/7047.

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