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Dissertations / Theses on the topic 'Broadband fiber optic links'

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1

O'Brien, Daniel Gerard, and n/a. "Broadband matching and distortion performance relating to multiple subcarrier multiplexed photonic systems." University of Canberra. Information Sciences & Engineering, 1992. http://erl.canberra.edu.au./public/adt-AUC20060821.095055.

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This thesis describes the outcome of study to investigate methods of broadband matching to photonic devices such as lasers and high speed detectors. The thesis is divided into two areas of interest relating to the design of broadband fiber optic links. The first area is the application of numerical methods and commensurate line methods to the design of compact equalisers which allow an improved transducer power gain over a wide band. It is shown that physically small equalisers can yield an improvement of 4 dB over a 2 GHz bandwidth. The second area considered is the distortion inherent in a l
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2

Detwiler, Thomas Frederick. "Continuous phase modulation for high speed fiber-optic links." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42867.

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Fiber-optic networks are continually evolving to accommodate the ever increasing data rates demanded by modern applications and devices. The current state-of-the art systems are being deployed with 100 Gb/s rates per wavelength while maintaining the 50 GHz channel spacing established for 10 Gb/s dense wavelength division multiplexed (DWDM) systems. Phase modulation formats (in particular quadrature phase shift keying - QPSK) are necessary to meet the spectral efficiency (SE) requirements of the application. The main challenge for phase modulated optical systems is fiber nonlinearities, where c
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3

Roth, Jeffrey Matthew. "Frequency modulated analog fiber optic links using direct detection." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/43564.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.<br>Includes bibliographical references (p. 85-88).<br>by Jeffrey Matthew Roth.<br>M.Eng.
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4

Chen, Xiang. "Coherent Radio Over Fiber Links for Broadband Wireless Access Networks." Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/36129.

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The ever-increasing demand for high date rate is beyond what is provided by the present wireless and wired access networks. Radio-over-fiber (RoF) technology which can provide broadband wireless access has been considered the most practical and efficient solution. In recent years, RoF with coherent detection has been shown to have better performance than that with direct detection in terms of receiver sensitivity and spectral efficiency. However, RoF with coherent detection suffers from phase noise introduced from both the transmitter and local oscillator (LO) laser sources, which degrades the
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5

Haas, Bryan Michael. "LIinearized optically phase-modulatd fiber optic links for microwave signal transport." College Park, Md.: University of Maryland, 2009. http://hdl.handle.net/1903/9124.

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Thesis (Ph.D.) -- University of Maryland, College Park, 2009.<br>Thesis research directed by :Dept. of Electrical and Computer Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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6

Shin, Dong-Soo. "High-efficiency optical modulation and detection for analog fiber-optic links /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC IP addresses, 2001. http://wwwlib.umi.com/cr/ucsd/fullcit?p3029644.

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7

Li, GuoLiang. "Wide-bandwidth high-efficiency electroabsorption modulators for analog fiber-optic links /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2002. http://wwwlib.umi.com/cr/ucsd/fullcit?p3036944.

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8

Yeung, Bun Endymion. "Comparative studies on microwave fiber optic links used for personal communication systems." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0005/MQ29001.pdf.

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9

Sankaran, Mahadevan. "Transparent Asynchronous Transmitter Receiver Interface (TAXI) communications for fiber optic data links." Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-01102009-063748/.

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10

Kanprachar, Surachet. "Modeling and Analysis of the Effects of Impairments in Fiber Optic Links." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/35245.

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In digital communication systems, several types of impairments may be introduced to the signal. These impairments result in degraded system performance; for example, high bit-error-rate or power penalty. For optical communication systems, in this thesis, these impairments are categorized into four types; that is, thermal noise, shot noise, signal-dependent noise, and intersymbol interference (ISI). By using a Gaussian approximation, effects of the first three impairments are analyzed. It is shown that signal-dependent noise introduces an error floor to the system and the bit-error-rate i
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11

Matsuo, A. T., and E. L. Law. "SIGNAL TRANSMISSION FROM REMOTE TELEMETRY ANTENNAS USING WIDEBAND ANALOG FIBER OPTIC LINKS." International Foundation for Telemetering, 1991. http://hdl.handle.net/10150/612160.

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International Telemetering Conference Proceedings / November 04-07, 1991 / Riviera Hotel and Convention Center, Las Vegas, Nevada<br>This paper will present the results of an investigation of the feasibility of using broadband analog fiber optic technology to send telemetry antenna outputs from remote sites to a central site. The fiber optic hardware consisted of a prototype analog fiber optic transmitter and receiver plus 10 km of single-mode fiber. Laboratory tests were performed to simulate the performance in the real-world. The fiber optic system had a noise figure of 33.5 dB and a third o
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12

Kemme, Shanalyn Adair 1961. "Modal noise in multimode fiber-optic links using vertical cavity surface emitting lasers." Diss., The University of Arizona, 1998. http://hdl.handle.net/10150/282717.

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A method to predict modal noise in short distance (30 m), high temporal bandwidth (hundreds of MHz) multimode optical links is proposed. In order to accommodate low cost, mechanical alignment, the link medium is modified from single mode fiber (used routinely in telecommunication systems) to multimode fiber. Modal dispersion in multimode fiber calls for a reduction in link length to preserve a relatively high temporal bandwidth. The source is a vertical cavity surface emitting laser (VCSEL), which is well suited for the high packaging density, high temporal bandwidth, and low power dissipation
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13

Loi, Kwok-Kwong. "Multiple-quantum-well waveguide modulators at 1.3um wavelength for analog fiber-optic links /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1998. http://wwwlib.umi.com/cr/ucsd/fullcit?p9912848.

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14

Jiang, Hao. "High-power, high-speed p-i-n- photodiodes for analog fiber optic links /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2000. http://wwwlib.umi.com/cr/ucsd/fullcit?p9970665.

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15

Kelkar, Anish S. "Dynamic range of analog fiber optic links used in microcellular mobile radio applications." Thesis, Virginia Tech, 1994. http://hdl.handle.net/10919/41988.

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The use of analog fiber optic links for microcellular mobile radio comminications has been the focus of considerable research recently. These systems have the advantages relative to coaxial cable of low noise and enormous bandwidth. Analog subcarrier multiplexing techniques are used for transmitting the mobile signals over the fiber. Use of this technology however presents some unique problems due to the nonlinearities of the fiber optics system and the noise introduced by it. In this thesis, we analyse the dynamic range of the fiber links used for these applications. <p>The dynamic range is l
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16

Sekkiou, Imene. "Design of communication systems based on broadband sources for fiber and free space optical links." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/172542.

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[ES] Las comunicaciones ópticas inalámbricas (OWC) constituyen una tecnología muy prometedora para el desarrollo de futuras comunicaciones inalámbricas. De hecho, ha despertado un interés creciente entre los investigadores y varias empresas de todo el mundo trabajan actualmente en el desarrollo de redes inalámbricas de muy alta velocidad. Las comunidades científica e industrial consideran la OWC como una tecnología complementaria en sus diversas formas: comunicaciones ópticas en el espacio libre (FSO), comunicaciones de luz visible (VLC) o fidelidad de la luz (Li-Fi). El espectro óptico ha sid
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17

Blake, George R. "High Speed Digital Fiber-Optic Links for Control, Video and RF Telemetry Data from Remote Locations." International Foundation for Telemetering, 1993. http://hdl.handle.net/10150/608831.

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International Telemetering Conference Proceedings / October 25-28, 1993 / Riviera Hotel and Convention Center, Las Vegas, Nevada<br>With the advent of high-speed parallel-to-serial conversion interface standards reaching the 1.6 gigabit per second region, it is now possible to remote entire telemetry tracking systems over long distances without the need to maintain receivers, combiners, computers and antenna control units at the pedestal. In addition, it will soon be possible to digitize the RF signal(s) with high-speed flash-video analog-to-digital converters and transfer the data over t
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18

Benameur, Sarah. "La mise en œuvre, dans une chaîne de transmission optique, à haut débit, de filtres optiques à longueur d’onde centrale réglable." Thesis, Limoges, 2015. http://www.theses.fr/2015LIMO0044/document.

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La présente étude concerne le domaine des systèmes de transmission par fibres optiques et plus particulièrement l’impact des différentes techniques de filtrage (optiques) sur les performances des systèmes de transmission optiques (métro, accès). En réception, ces systèmes présentent un filtre étroit, qui permet de filtrer le signal sans avoir à traiter le bruit dans la liaison. On considère généralement que l'étroitesse du filtre de réception est indispensable au bon fonctionnement d'une liaison sans répéteurs, et que la sensibilité de la liaison est d'autant plus grande que la largeur du filt
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19

Bertoloto, Danilo Costa. "Redes de fibra óptica : conexões locais em dimensões globais no Brasil." Universidade Federal de Mato Grosso, 2012. http://ri.ufmt.br/handle/1/560.

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20

Shaker, Shwan Najmadin. "Hållbart samhällsbyggande : En studie av hur digital infrastruktur kan bidra till hållbar samhällsutveckling." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-13620.

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För att uppnå ett långsiktigt hållbart samhälle krävs ekologisk, ekonomisk och social hållbar utveckling. Ett sätt att uppnå hållbarhet är genom digitalisering, men detta förutsätter att det finns robust och framtidssäker infrastruktur. Detta examensarbete syftar till att bidra med ökad kunskap om de möjligheter som kan skapas med hjälp av höghastighetsbredband genom fiber, samt att påvisa hur fiberutbyggnaden kan bidra till en hållbar utveckling. Genom att besvara de tre frågeställningarna ”Vilka möjligheter skapar höghastighetsbredband genom fiber?”, ”Vilka utmaningar finns för fiberutbyggna
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21

Lin, Yun-Shi, and 林耘世. "Study of Broadband Fiber Source and Fiber-Optic Video Transmission." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/96885419519454220723.

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碩士<br>國立中山大學<br>海下技術研究所<br>86<br>This thesis includes two parts: the broadband erbium-doped superfluorescent fiber source (SFS) for fiber optic gyroscope (FOG), and the fiber-optic video transmission technique of remotely operated vehicle (ROV). For the study of SFS for FOG, we investigate and compare the characteristics of erbium-doped SFS using different flattening techniques in double-pass forward (DPF) and double-pass backward (DPB) configurations. The intrinsic flattening is to optimize the erbium-doped fiber (EDF) length and pump power for an SFS to obtain high output power, wide line-wi
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22

Cheng, Ming-Jen, and 鄭茗仁. "Study of Simultaneous Transmission of Digital and RF Signals over Fiber-Optic Links." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/80351492738577472773.

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碩士<br>國立中央大學<br>電機工程研究所<br>95<br>In all access networks, optical fiber plays an imperative role. Fiber carries multimedia signals such as video, audio and data with a combination of subcarrier multiplexed radio over fiber and digital baseband formats. Therefore, radio over fiber plays key role in both wired and wireless broadband multimedia access networks. In this thesis, a simultaneous modulation and fiber-optic transmission of 1.25Gb/s digital signal and 2.4GHz RF signal with Gaussian minimum shift keying(GMSK) data is investigated. We compare two demodulation schemes which demodulate singl
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23

薛玉婷. "Study of Fiber-Optic Links Supporting Simultaneous Transmission of Baseband and Microwave Signals." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/07238496875057190013.

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碩士<br>國立交通大學<br>光電工程系所<br>93<br>The demand on both wired and wireless access network is accelerating. For wireless access, one feasible option is radio over fiber (Rof). There is an emerging need to merge the fixed wired network and the RoF network for low cost infrastructure. So, in this thesis, several fiber-optic links that support simultaneous transmission of baseband data and radio signals are presented. By using simulation tool, VPI, we demonstrate two novel modulation methods which load 60-GHz-band radio signals on the frequency shift keying (FSK) and differential phase shift keying (DP
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24

Yang, Shun-Tzu, and 楊舜慈. "Citizen Digital Certificate Policy and broadband fiber optic network authentication mechanism integration - analysis of implementation experience in Hualien County." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/f96dwh.

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