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Dissertations / Theses on the topic 'Optical fiber communication'

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1

Males, Mladen. "Suppression of transient gain excursions in an erbium-doped fibre amplifier /." Connect to this title, 2006. http://theses.library.uwa.edu.au/adt-WU2007.0157.

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2

Hao, Miin-Jong. "Performance evaluation of practival FSK, CPFSK, and ASK detection schemes for coherent optical fiber communication systems." Diss., Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/15686.

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3

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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4

Polley, Arup. "High performance multimode fiber systems a comprehensive approach /." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/31699.

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Thesis (Ph.D)--Electrical and Computer Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Ralph, Stephen; Committee Member: Barry, John; Committee Member: Chang, G. K.; Committee Member: Cressler, John D.; Committee Member: Trebino. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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5

Males, Mladen. "Suppression of transient gain excursions in an erbium-doped fibre amplifier." University of Western Australia. School of Electrical, Electronic and Computer Engineering, 2007. http://theses.library.uwa.edu.au/adt-WU2007.0157.

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This thesis reports original work on suppression of transient gain excursions in an erbium-doped fibre amplifier (EDFA). The work presented in this thesis is a detailed investigation of four closed-loop systems that control the EDFA gain dynamically. The performance of the four closed-loop systems is evaluated by analytical work, supplemented by computer simulations and insystem measurements performed on a hardware EDFA. In addition, a stability analysis of the four closed-loop systems is presented. In the stability analysis presented in this thesis, nonlinear nature of the four closed-loop sy
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6

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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7

Kandlikar, Milind. "Low frequency cutoff effects in fiber optic communication systems." Thesis, Virginia Tech, 1988. http://hdl.handle.net/10919/44683.

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<p> The presence of low frequency cutoffs in the forward path of the information signal leads to inter-symbol interference (ISI) and degradation of the signal to noise ratio at the sampling instant in digital on-off keying (OOK) systems. The low frequency cutoffs occur as a result of the presence of power separation filters in a line wire system and gain instability of APDâ s to D.C. in fiber optic systems. Also, it is easier to design amplifiers that do not extend to D.C. The ISI which manifests itself in the form of baseline wander can cause appreciable degradation in the signal to n
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8

Guizani, Sghaier. "Optical post chromatic dispersion compensation in an optical fiber communication system." Thèse, Trois-Rivières : Université du Québec à Trois-Rivières, 2008. http://www.uqtr.ca/biblio/notice/resume/30055578R.pdf.

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9

Liu, Cheng. "Advanced system design and signal processing techniques for converged high-speed optical and wireless applications." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/49058.

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The ever-increasing data traffic demand drives the evolution of telecommunication networks, including the last-mile access networks as well as the long-haul backbone networks. This Ph.D. dissertation focuses on system design and signal processing techniques for next-generation converged optical-wireless access systems and the high-speed long-haul coherent optical communication systems. The convergence of high-speed millimeter-wave wireless communications and high-capacity fiber-optic backhaul networks provides tremendous potential to meet the capacity requirements of future access networks. In
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10

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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11

Song, Yunbin. "Optical Communication Systems for Smart Dust." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/34679.

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In this thesis, the optical communication systems for millimeter-scale sensing and communication devises known as "Smart Dust" are described and analyzed. A smart dust element is a self-contained sensing and communication system that can be combined into roughly a cubic-millimeter mote to perform integrated, massively distributed sensor networks. The suitable passive optical and fiber-optic communication systems will be selected for the further performance design and analysis based on the requirements for implementing these systems. Based on the communication link designs of the free-space
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12

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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13

Lee, Jong-Hyung. "Analysis and Characterization of Fiber Nonlinearities with Deterministic and Stochastic Signal Sources." Diss., Virginia Tech, 2000. http://hdl.handle.net/10919/26265.

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In this dissertation, various analytical models to characterize fiber nonlinearities have been applied, and the ranges of validity of the models are determined by comparing with numerical results. First, the perturbation approach is used to solve the nonlinear Schrödinger equation, and its range of validity is determined by comparing to the split-step Fourier method. In addition, it is shown mathematically that the perturbation approach is equivalent to the Volterra series approach. Secondly, root-mean-square (RMS) widths both in the time domain and in the frequency domain are modeled. It is
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14

Chih, Samuel C. M. "Error detection capability and coding schemes for fiber optic communication." Diss., Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/14854.

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15

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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16

Goossens, Jan-Willem. "Advances in nonlinear Fourier transform based optical fiber communication." Thesis, Institut polytechnique de Paris, 2020. http://www.theses.fr/2020IPPAT010.

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L’augmentation drastique des débits d’information au cours des dernières années se confronte de plus en plus aux limites de capacité de la fibre optique. Les schémas de communication actuellement employés sont limités par le caractère non linéaire du canal de communication. Une approche prometteusepour surmonter ces limitations est fournie par la transformée de Fourier non linéaire (NFT). Le signal à transmettre est décomposé sur la base de modes spectraux non-linéaires qui se propagent indépendamment, permettant ainsiune transmission de données sans interférence sur une fibre optique.Dans cet
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17

Chen, Hui. "Inline rise-time measurement using amplitude histograms for fiber-optic communication systems /." View Abstract or Full-Text, 2003. http://library.ust.hk/cgi/db/thesis.pl?ELEC%202003%20CHENH.

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Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2003.<br>Includes bibliographical references (leaves 64-66). Also available in electronic version. Access restricted to campus users.
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18

Yuan, Ping. "Gain, noise and bandwidth of avalanche photodiodes with thin multiplication regions /." Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.

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19

Ahmed, Maruf Newaz. "Transimpedance Amplifier (TIA) Design for 400 Gb/s Optical Fiber Communications." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/33205.

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Analogcircuit/IC design for high speed optical fiber communication is a fairly new research area in Dr. Haâ s group. In the first project sponsored by ETRI (Electronics and Telecommunication Research Institute) we started to design the building blocks of receiver for next generation 400 Gb/s optical fiber communication. In this thesis research a transceiver architecture based on 4x100 Gb/s parallel communication is proposed. As part of the receiver, a transimpedance amplifier for 100 Gb/s optical communication is designed, analyzed and simulated. Simulation results demonstrate the excellent f
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20

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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21

Lu, Bin. "Simulation of optical fiber communication system with polarization mode dispersion." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0030/MQ65695.pdf.

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22

Ansari, Ashlaghi Aria. "100 GBPS Orthogonal Frequency Division Multiplexing optical fiber communication network." Thesis, California State University, Long Beach, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1604879.

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<p> Optical fiber communication has emerged as a high potential substitute for communication methods such as twisted pair and coaxial wire. The main advantage of optical fiber over previous methods is to have higher capacity of data rate transmission. The conventional types of modulation and demodulation technique, which have been used through optical fiber communication system are Wavelength Division Multiplexing (WDM) technique and Dense Wavelength Division Multiplexing (DWDM) technique so far. </p><p> In this thesis, the Orthogonal Frequency Division Multiplexing (OFDM) is applied throug
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23

Besbes, Habib (M Habib) Carleton University Dissertation Engineering Electrical. "Performance evaluation and statistical analysis of optical fiber communication systems." Ottawa, 1991.

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24

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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25

Goldfarb, Gilad. "DIGITAL SIGNAL PROCESSING TECHNIQUES FOR COHERENT OPTICAL COMMUNICATION." Doctoral diss., University of Central Florida, 2008. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2893.

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Coherent detection with subsequent digital signal processing (DSP) is developed, analyzed theoretically and numerically and experimentally demonstrated in various fiber‐optic transmission scenarios. The use of DSP in conjunction with coherent detection unleashes the benefits of coherent detection which rely on the preservation of full information of the incoming field. These benefits include high receiver sensitivity, the ability to achieve high spectral‐efficiency and the use of advanced modulation formats. With the immense advancements in DSP speeds, many of the problems hindering the use of
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26

He, Xuan. "MIMO Digital Signal Processing in Few-Mode Fiber Optical Communication Systems." Thesis, University of Louisiana at Lafayette, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3687684.

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<p> Space-division multiplexing (SDM) has been extensively proposed to overcome the next capacity crunch with ever-increasing data and video traffic. Among several SDM approaches, mode-division-multiplexing (MDM) in few-mode fiber (FMF) is the most auspicious technology. One key challenge in FMF transmission systems is random mode coupling among different fiber modes, which can cause severe inter-modal crosstalk. Moreover, large accumulated differential mode group delay (DMGD) can induce significant inter-symbol interference (ISI). </p><p> The approach of adaptive multi-input multi-output
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27

Feng, Helena Xuehong Chen. "Impact of the physical layer impairments on optical fiber communication systems /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2002. http://uclibs.org/PID/11984.

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28

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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29

Arya, Vivek. "Analysis, Design and Performance Evaluation of Optical Fiber Spectrum-Sliced WDM Systems." Diss., Virginia Tech, 1997. http://hdl.handle.net/10919/30584.

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This dissertation investigates the design and performance issues of a recently demonstrated technique, termed as spectrum-slicing, for implementing wavelength-division-multiplexing (WDM) in optical fiber systems. Conventional WDM systems employ laser diodes operating at discrete wavelengths as carriers for the different data channels that are to be multiplexed. Spectrum-slicing provides an attractive low-cost alternative to the use of multiple coherent lasers for such WDM applications by utilizing spectral slices of a broadband noise source for the different data channels. The principal bro
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30

Schrenk, Bernhard. "Characterization and design of multifunction photonic devices for next-generation fiber-to-the-home optical network units." Doctoral thesis, Universitat Politècnica de Catalunya, 2011. http://hdl.handle.net/10803/22676.

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El estudio e investigación en el campo de las redes ópticas de acceso han sido fomentadas en años recientes debido a la continua migración de Servicios multimedia que son ofrecidos a través de Internet. Aunque los dispositivos utilizados para implementar Fiber-to-the-Home (fibra a casa), que reemplazan las soluciones tradicionales basadas en cable de cobre, están basadas aún en micro-óptica, se puede prever una evolución hacia integración fotónica. Todavía queda la pregunta acerca de los diseños necesarios para este paso importante de integración, que debe ser optimizado en términos del desemp
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31

Ursini, Leonora. "Optical Chaotic Transmission Systems For Secure Data Communication." Doctoral thesis, Università degli studi di Padova, 2009. http://hdl.handle.net/11577/3425929.

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The optical chaos dynamics are investigated for obtaining the secure transmission of an information message. A detailed numerical analysis of an optical chaotic transmission system, based on the synchronization of two chaotic lasers is presented. At the transmitter, the chaotic waveform is superposed on the information message; at the receiver, the message is recovered by subtracting the synchronized chaotic wave from the received signal. The aim is the investigation of the system performance for various configurations. Original methods are also proposed for improving the performance. Finall
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32

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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33

Raad, Bechara. "Tunnel filters and optical amplifiers for use in fiber optic communication systems." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-10222009-125140/.

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34

Kuo, Ping-piu, and 郭炳彪. "Fiber-based nonlinear photonic processor: a versatile platform for optical communication signal processing." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B4098817X.

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35

Kuo, Ping-piu. "Fiber-based nonlinear photonic processor a versatile platform for optical communication signal processing /." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/B4098817X.

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36

Wongpaibool, Virach. "Improvement of Fiber Optic System Performance by Synchronous Phase Modulation and Filtering at the Transmitter." Diss., Virginia Tech, 2003. http://hdl.handle.net/10919/26111.

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In this dissertation the performance of a novel variant of a return-to-zero (RZ) modulation format, based on square-wave phase modulation and filtering of a continuous-wave (CW) signal, is investigated and compared with various modulation formats considered in the literature. We call this modulation format continuous-wave square-wave (CWSW). With CWSW an RZ pulse train is generated by phase modulating the CW signal by a periodic square-wave phase function having an amplitude of and frequency of half the bit rate, and then filtering the signal. The filter performs phase-to-amplitude conversio
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37

Min, Rui. "Polymer optical fiber gratings for microwave photonics and communications application." Doctoral thesis, Universitat Politècnica de València, 2019. http://hdl.handle.net/10251/125473.

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[ES] Con el continuo desarrollo de materiales y tecnologías de fabricación durante las últimas tres décadas, la atenuación de la transmisión de las fibras ópticas de polímero (POF) se ha reducido considerablemente. Las POF son ventajosas para las redes domésticas, así como para las interconexiones de almacenamiento, y tienen ventajas significativas para muchas aplicaciones de detección, que incluye el límite alto de tensión elástica, alta resistencia a la fractura, alta flexibilidad en la flexión, alta sensibilidad a la tensión y coeficientes termoópticos negativos. Esta tesis consigue mejorar
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38

Nabavi, Neda. "Digital Signal Processing in Coherent Optical Radio Over Fiber Systems." Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/36664.

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Coherent communication systems became practical with the advent of integrated electronic circuits capable of supporting Digital Signal Processing (DSP) at speeds compatible with line rates. Much of the complexity and expense of the functions required in a coherent receiver to compensate for optical channel uncertainties and impairments could be transferred to DSP algorithms. The aim of the research presented in this thesis is to develop radical breakthrough DSP algorithms and design new architectures for the digital coherent optical receiver within the RF-Cité system and optical fiber network
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39

Lin, Rui. "High-capacity short-reach optical communications." Doctoral thesis, KTH, Kommunikationssystem, CoS, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-196580.

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The global traffic is experiencing an exponential growth posing severe challenges to the communication networks in terms of capacity. As a future-proof technology fiber communication is widely implemented in different network segments, which can be categorized by transmission distance as long-haul and short-reach. This thesis focuses on the short-reach communication networks including fiber access network connecting the end users to the metro/core networks that covering tens of kilometers and optical datacenter network handling the traffic within the datacenter with distance up to a few kilome
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40

Li, Jia, and 李佳. "Photonic microwave processor based on fiber optical parametric amplifier." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B43085374.

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Li, Jia. "Photonic microwave processor based on fiber optical parametric amplifier." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B43085374.

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42

Thoen, Erik R. (Erik Robert). "Development of ultrashort pulse fiber lasers for optical communication utilizing semiconductor devices." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/16747.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000.<br>Includes bibliographical references (p. 131-139).<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>The nonlinear reflectivity of semiconductor saturable absorber mirrors is investigated with ultrafast time-resolved and time-averaged reflectivity measurements. The relative contributions of absorption bleaching and induced absorption are studied as a function of fluence and wav
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43

Chaouch, Hacène Mahieddine. "Advanced Modulation Formats and All-Optical Processing Solutions for Future Fiber-Optic Communication Systems." Diss., The University of Arizona, 2011. http://hdl.handle.net/10150/202987.

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In this dissertation we present the research findings around two important hot topics of modern and future fiber-optic communication systems: 100 Gbit/s transmission and alloptical processing of received phase-modulated signals. The findings are discussed in the same chronological order they were obtained. Each topic is summarized in two chapters that correspond to one selected journal and one conference publications. The first and second chapters are dedicated to the simulation and numerical analysis of 100 Gbit/s systems. In chapter one, we present a thorough investigation of the best 100 Gb
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44

"Optical processing techniques for advanced fiber-optic communication systems." Thesis, 2007. http://library.cuhk.edu.hk/record=b6074402.

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Optical signal processing plays a key role in a high capacity all-optical communication network. Rapid advances in the processing technology offers new solutions to enhance fiber communications. This thesis focuses on the development of new components and techniques for optical signal processing.<br>The application of optical nonlinearities in fibers and in semiconductor devices is of great importance in different fields of research. In this thesis, we report our findings in the development of new techniques for photonic signal processing. Two different approaches for extinction ratio enhancem
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45

Yang, I.-Chen, and 楊怡箴. "A Novel Variable Optical Attenuator for Fiber Optical Communication." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/88139217008533645731.

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碩士<br>國立中山大學<br>光電工程研究所<br>90<br>A novel variable optical attenuator based on buried polymer waveguides and waveguide bends is proposed. The attenuator consists of three waveguide sections, separated for waveguide bending by two embedded micorprisms. The attenuation of device was achieved by steering the beam propagation direction in the waveguide by thermo-optical effects. Detailed simulation results using the Beam Propagation Method are presented. In addition, radiation losses of the waveguide bends are experimentally investigated. After two-10° bends, the normalized insertion losses a
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"Gain transient and dynamic gain tilt in erbium doped fiber amplifers." Thesis, 2006. http://library.cuhk.edu.hk/record=b6074298.

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Both gain transient and dynamic gain control devices were also designed and fabricated as photonic integrated circuits (PICs). Silicon-based PICs were able to perform dynamic gain tilt compensation by thermo-optic effect. Helium doped SOI rib waveguides were used for power monitoring and is potentially used as monolithic gain tilt compensation device with arrayed waveguide grating (AWG).<br>Dynamic gain tilt induced by wavelength dependent gain of EDFA leads to power penalty in wavelength division multiplexed systems. Using optical filter with known spectral response, it is possible to detect
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47

"Resources optimization of operational fiber links & interconnections for the merger of two optical networks." Thesis, 2008. http://library.cuhk.edu.hk/record=b6074662.

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A model is developed for the optimization. The model can be used for the merger of both identical and non-identical networks. The overall costs for various topologies are optimized with respect to different interconnection build costs. It is shown that the merger of two optical networks can reduce more than 50% of operational fiber links, while routing between any two nodes in the two optical networks are maintained. This has been proven through case analysis and analytical results.<br>An algorithm for resource optimization is also developed for the consolidation of two coexisting networks. In
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Tei-Wei, Chan, and 詹德威. "Video Communication System Using Plastic Optical Fiber." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/15927781562730338398.

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49

GAO, MING-SHENG, and 高銘盛. "THE APPLICATION OF FIBER RAMAN AMPLIFIER IN OPTICAL FIBER COMMUNICATION SYSTEMS." Thesis, 1990. http://ndltd.ncl.edu.tw/handle/75926096036427457513.

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Li, Jinglai. "Estimating the reliability of optical fiber communication systems." 2007. http://proquest.umi.com/pqdweb?did=1397906871&sid=3&Fmt=2&clientId=39334&RQT=309&VName=PQD.

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Thesis (Ph.D.)--State University of New York at Buffalo, 2007.<br>Title from PDF title page (viewed on Feb. 26, 2008) Available through UMI ProQuest Digital Dissertations. Thesis adviser: Biondini, Gino. Includes bibliographical references.
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