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Dissertations / Theses on the topic 'Pulsed mode'

Author: Grafiati

Published: 30 May 2022

Last updated: 19 July 2025

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1

Yagci, Mahmut Emre. "Development Of A Picosecond Pulsed Mode-locked Fiber Laser." Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615773/index.pdf.

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Fiber lasers represent the state-of-the-art in laser technology and hold great promise for a wide range of applications because they have a minimum of exposed optical interfaces, very high efficiency, and are capable of exceptional beam quality. In the near future, the most important markets such as micromachining, automotive, biomedical and military applications will begin to use this technology. The scope of this thesis is to design and develop a short picosecond pulsed fiber laser using rare-earth doped fiber as a gain medium. The proposed master oscillator power amplifier (MOPA) will be us

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2

Yuksel, Yuksel. "Thermoelectric Cooling Of A Pulsed Mode 1064 Nm Diode Pumped Nd:yag Laser." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612550/index.pdf.

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Since most of the energy input is converted to thermal energy in laser applications, the proper thermal management of laser systems is an important issue. Maintaining the laser diode and crystal temperature distributions in a narrow range during the operation is the most crucial requirement for the cooling of a laser system. In the present study, thermoelectric cooling (TEC) of a 1064 nm wavelength diode pumped laser source is investigated both experimentally and numerically. During the heat removal process, the thermal resistance through and between the materials, the proper integration of th

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3

Hoogland, Sjoerd. "Optically pumped vertical external cavity surface emitting semiconductor lasers." Thesis, University of Southampton, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289504.

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4

Santos, JoseÌ Angel. "Transcutaneous pulsed mode power delivery to implants for the treatment of atrial fibrillation." Thesis, University of Ulster, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251911.

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5

Dilwith, Jason. "Feasibility Study of Laser Ablation using Long Pulsed 300W, CW Single Mode Fiber Laser." NCSU, 2005. http://www.lib.ncsu.edu/theses/available/etd-06132005-191622/.

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Many applications now require micro sized holes that are difficult to produce with conventional methods. The entrance of lasers in the industry has brought about a better method for producing these holes. However the ultra-short pulse lasers that are normally used are extremely expensive and require many pulses to remove the material due to the small amount of energy they deposit. The objective of this research is to examine the feasibility of laser ablation using a 300W, CW Single Mode fiber laser which has high continuous power output for each pulse and has excellent beam quality. The result

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6

Eryilmaz, Ertan. "Design And Construction Of A Cw Mode Nd:yag Laser Prototype." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605521/index.pdf.

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In this thesis a theoretical background of Nd:YAG lasers has been presented and key parameters of a design have been stated. Both pulsed mode and CW mode designs have been made<br>a 500mJ xenon flash lamp has been investigated as the pulsed light source and a 500W tungsten halogen lamp has been used as the continuous light source for optical pumping. Closed cooling system has been constructed. De-ionized water has been used as coolant. The goal has been acomplished by constructing a CW mode prototype. The output power has been calculated. Dependence of output power to the reflectivity of outpu

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7

Афанасьева, О. В., та А. В. Коптяков. "Лазерная очистка металлов". Thesis, Science and education LTD, 2019. http://openarchive.nure.ua/handle/document/9247.

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8

Miracoli, Rosalba. "Characterization of microwave discharge ion source for high protom beam production in cw and pulsed mode." Thesis, Università degli Studi di Catania, 2011. http://hdl.handle.net/10761/182.

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This thesis consist of an introduction to the plasma physics of Microwave Discharge Ion Source (MDIS) and a review of the result obtained including discussion of related work. This thesis begin with a theoretical discussion dealing with plasma physics relevant for the production of intense proton beam in MDIS. This is followed by an historical overview on the production of high current beams by the 2.45 GHz microwave ion sources. The experimental part of the work consist of the studies related to MDIS plasma physics. For each source the most important parameters are the maximum beam current an

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9

Fang, Qiang. "2 μm Pulsed Fiber Laser Sources and Their Application in Terahertz Generation". Diss., The University of Arizona, 2012. http://hdl.handle.net/10150/232475.

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In this dissertation, an all-fiber-based single frequency nanosecond pulsed laser system at ~ 1918.4 nm in master-oscillator-power-amplifier (MOPA) configuration is present. The nanosecond pulse seed is achieved by directly modulating a continuous wave (CW) single frequency fiber laser using a fast electro-optical modulator (EOM) driven by an arbitrary waveform generator (AWG). One piece of single mode, large core, polarization-maintaining (PM) highly thulium-doped (Tm-doped) germanate glass fiber (LC-TGF) is used to boost the pulse power and pulse energy of these modulated pulses in the final

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10

Venkatraman, Dheera. "Tools for quantum optics : pulsed polarization-maintaining Er-doped fiber laser and spatial mode manipulation in spontaneous parametric downconversion." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/42115.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2007.<br>Includes bibliographical references (p. 50-52).<br>Two separate projects were undertaken to improve technology for entangled photon sources, useful for quantum optics. In one project, a pulsed, mode-locked erbium-doped fiber laser, designed to be used as a seed laser for a 390 nm source, was built using polarization-maintaining components to address polarization drift. The fiber laser operated at a center wavelength of 1560.0 nm with an output power of 1 to 2.5 mW, and mode-l

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11

Liu, Chang. "Structure, mechanical and tribological properties of hydrogen-free amorphous carbon films deposited by dual-frequency mode pulsed-DC magnetron sputtering." Thesis, University of Sheffield, 2017. http://etheses.whiterose.ac.uk/17921/.

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Amorphous carbon (hydrogenated and hydrogen-free) films have attracted much attention during the past few decades due to their unique properties such as high hardness, low coefficient of friction (CoF) and low wear rate. Compared with the hydrogenated amorphous carbon films, hydrogen-free amorphous carbon (a-C) films, with higher hardness, are believed to have better tribological properties especially in humid environments. Different deposition parameters (or techniques) will strongly affect the microstructure of the a-C films and thus influence their mechanical and tribological properties. Fo

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12

Kneis, Christian. "Investigation of mid-infrared supercontinuum generation in soft-glass fibers from a Q-switched mode-locked 2 mm fiber laser." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0135/document.

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Cette thèse est dédiée à l’étude de la génération de supercontinuum (SCG) deforte puissance moyenne dans le domaine spectral entre 2 mm et 5,5 mm. Un laser à fibredopée thulium (Tm3+) opérant dans un régime simultanément déclenché et à verrouillage demodes (QML) a été développé. En régime continu ce laser a délivré 70 W et en régime QML,26Wmoyens ont été obtenus pour des taux de répétition en QS de 180 kHz ou plus. L’énergiela plus élevée contenue dans une enveloppe QS a été évaluée à 166 mJ avec 66 mJ contenuedans la sous-impulsion à verrouillage de mode la plus énergétique. L’émission du las

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13

Cavalcanti, Fabio. "Desenvolvimento de um laser pulsado com emissão em 1053 nm para utilização na técnica de \"Cavity Ring-Down Spectroscopy\"." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/85/85134/tde-14102014-145230/.

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Neste trabalho, foi desenvolvido um laser pulsado utilizando um chaveador-Q passivo em uma cavidade com a tecnologia de controle de modo por duplo-passo. Utilizando um cristal de Nd:LiYF4 com 0,8 mol% de dopagem, foi possível gerar um pulso com duração de 5,5 ns (FWHM), com 1,2 mJ de energia e potência pico de 220 kW para utilização na técnica Cavity Ring-Down Spectroscopy (CRDS). A técnica (CRDS), que pode ser traduzida por espectroscopia de cavidade ressonante, é utilizada para medida de espectros de absorção de gases, líquidos e sólidos. Com a técnica CRDS é possível medir perdas com altíss

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14

斎藤, 英彦, 博史林, 和彦宮口, et al. "Discrepancy between systolic and diastolic dysfunction of the left ventricle in patients with Duchenne muscular dystrophy." Thesis, Oxford University Press, 1993. http://hdl.handle.net/2237/16373.

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15

Mavier, Fabrice. "Procédé de projection plasma en mode pulsé associé à une injection jet d'encre synchronisée : mise au point, processus en vol et élaboration de dépôts céramiques." Thesis, Limoges, 2017. http://www.theses.fr/2017LIMO0065/document.

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Dans le domaine des dépôts réalisés par projection thermique, les dernières recherches ont permis de développer des dépôts nanostructures par projection de suspensions (SPS) ou de solutions de précurseurs (SPPS). L’injection de liquide est une technique prometteuse qui a le potentiel pour devenir industriellement viable. Cependant, un meilleur contrôle des interactionsplasma/matériaux est nécessaire. En effet, les torches à courant continu mono-cathodes génèrent un plasma fortement fluctuant qui modifie les transferts thermiques et dynamiques vers les gouttelettes injectées, entraînant un trai

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16

Charlet, Bertrand. "Etude et réalisation de sources laser impulsionnelles en optique intégrée sur verre : application à la génération de supercontinuum." Phd thesis, Université de Grenoble, 2011. http://tel.archives-ouvertes.fr/tel-00660611.

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Le développement des sources supercontinuum a engendré des avancées majeures dans de nombreux domaines tels que la spectroscopie, la métrologie ou encore la biologie avec la tomographie optique cohérente. Récemment, l'arrivée des fibres à cristaux photoniques (FCPs) a permis la fabrication de telles sources avec des lasers impulsionnels de pompe moins puissants. Ainsi, de par leur compatibilité avec les fibres optiques, les lasers impulsionnels réalisés en optique intégrée sur verre semblent une alternative intéressante pour la réalisation d'une source supercontinuum intégrée. Notre travail a

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17

ROSSI, WAGNER de. "Construcao e operacao de lasers de neodimio: estudo do comportamento temporal." reponame:Repositório Institucional do IPEN, 1995. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10435.

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Made available in DSpace on 2014-10-09T12:38:43Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:03:03Z (GMT). No. of bitstreams: 1 06043.pdf: 11141670 bytes, checksum: 6dd9b63e574d6cd26d0271a82c9dd0ef (MD5)<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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18

Kim, Jong Ryul. "Dose analysis of the Model 112A Pulserad Pulsed X-Ray Generator by ITS/CYLTRAN." Thesis, Monterey, California. Naval Postgraduate School, 1989. http://hdl.handle.net/10945/25856.

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19

Paul, Arindam. "Development and evaluation of NiW alloy and NiW-TiO2 composite coatings on the mechanical properties, tribological performance and the corrosion resistance of bearing steel." University of Akron / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=akron1618853855083468.

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20

Acebo, Alicia Gonzalez. "Pulsed parabolic equation model of acoustic transmission (PPEMAT)." FIU Digital Commons, 1986. http://digitalcommons.fiu.edu/etd/1084.

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Underwater sound is very important in the field of oceanography where it is used for remote sensing in much the same way that radar is used in atmospheric studies. One way to mathematically model sound propagation in the ocean is by using the parabolic-equation method, a technique that allows range dependent environmental parameters. More importantly, this method can model sound transmission where the source emits either a pure tone or a short pulse of sound. Based on the parabolic approximation method and using the split-step Fourier algorithm, a computer model for underwater sound propagatio

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21

Brunzell, Martin. "Free-Space Dark Pulse Mode-Locked Laser." Thesis, KTH, Tillämpad fysik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-296524.

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While the development of bright pulses produced in free space devices can be found in a large set of applications and research equipment all over the world. The production of dark pulses in a free-space device has not been shown prior to this work. In this work a method of producing free space mode-locked laser in a straight laser cavity using intra-cavity loss induced by periodic nonlinear interactions mediated by a mode-locked source. We are able to show the existence of a dark pulse propagating inside of the cavity. An extensive analysis of the generation of the dark pulse is made using a h

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22

Mosaad, N. R. M. "Picosecond measurements with mode-locked CW lasers." Thesis, University of Strathclyde, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382491.

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23

Umorin, Mikhail Pavlovich Lind Owen T. "Phytoplankton growth model for a turbid pulsed aquatic ecosystem." Waco, Tex. : Baylor University, 2006. http://hdl.handle.net/2104/4194.

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24

Tamura, Kohichi Robert. "Additive pulse mode-locked erbium-doped fiber lasers." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/11851.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.<br>Includes bibliographical references (leaves 155-168).<br>by Kohichi Robert Tamura.<br>Ph.D.

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25

Zhao, Zhuang. "Pulse generation from mode locked VECSELS AT 1.55 um." Thesis, Paris 11, 2012. http://www.theses.fr/2012PA112204/document.

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Dans un premier temps, nous avons optimisé des structures laser VECSEL dans le but de maximiser la puissance émise par une gestion thermique adéquate. Les structures conçues et fabriquées contiennent une zone active à base d’InP pour l’émission à 1.55 µm. Un miroir hybride métal- semiconducteur à base d’un miroir de Bragg GaAs/AlAs est intégré à la zone active. La structure semiconductrice est intégrée avec différents substrats hôtes de bonne conductivité thermique sur la base de simulations numériques, et les performances des dispositifs fabriqués sont évaluées expérimentalement sous pompage

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26

Funk, Andrew Christopher. "Cryptography using two-mode quantum mechanically squeezed optical pulses /." view abstract or download file of text, 2004. http://wwwlib.umi.com/cr/uoregon/fullcit?p3120623.

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Thesis (Ph. D.)--University of Oregon, 2004.<br>Typescript. Includes vita and abstract. Includes bibliographical references (leaves 204-209). Also available for download via the World Wide Web; free to University of Oregon users.

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27

Dias, Agnaldo Vieira. "Sistema de alimentação chaveado para modulador de pulsos com linha de retardo aplicado em sistema radar = Switching mode system to supply pulse modulators based in pulse forming network applied to radar." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/258992.

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Orientador: Ernesto Ruppert Filho<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Elétrica e de Computação<br>Made available in DSpace on 2018-08-21T00:56:13Z (GMT). No. of bitstreams: 1 Dias_AgnaldoVieira_M.pdf: 2229736 bytes, checksum: 725a7fa267bc30780c457689e4356336 (MD5) Previous issue date: 2012<br>Resumo: O estudo da utilização de conversores CC/CC isolados e elevadores de tensão para a alimentação de moduladores de pulsos é apresentado neste trabalho. Foi selecionada a topologia em ponte completa, dando-se enfoque ao problema das capacitâncias p

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28

Hsu, Kevin. "Stochastic mode-locking theory and short pulse generation by active mode-locking of external-cavity semiconductor lasers." Diss., Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/14990.

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29

Dias, André. "Development of a scanning MOKE system with a 10 T pulsed magnetic field source." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAY099.

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Nous avons développé un système de mesure magnéto-optique à balayage basé sur l’Effet Kerr(MOKE). Le montage permet mesurer des cycles d'aimantation en balayant de larges surfaces (150 x 150 mm 2 ) sous un champ magnétique pulsé allant jusqu’à 10 T à température ambiante. Les champs magnétiques intenses sont produits par des bobines millimétriques (diamètre interne = 3 mm) connectées à un générateur de courant bipolaire pulsé. Nous avons pu démontrer que ce système présente un fort potentiel pour l'étude combinatoire de couches magnétiques dures. Pour cela, nous avons dressé grâce à notre syst

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30

Ostrovskyy, Pylyp [Verfasser]. "Pulse modulation techniques for switched-mode transmitter / Pylyp Ostrovskyy." Ulm : Universität Ulm, 2016. http://d-nb.info/1098309529/34.

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31

Yanez, Mauricio. "Pulse narrowing in optical fibers with polarization mode dispersion." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0034/MQ65530.pdf.

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32

Cataluna, Maria Ana. "Ultrashort-pulse generation from quantum-dot semiconductor diode lasers." Thesis, University of St Andrews, 2008. http://hdl.handle.net/10023/414.

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In this thesis, novel regimes of mode locking in quantum dot semiconductor laser diodes have been investigated by exploiting the unique features offered by quantum dots. Using an unconventional approach, the role of excited state transitions in the quantum dots was exploited as an additional degree of freedom for the mode locking of experimental quantum dot lasers. For the first time, passive mode locking via ground (1260nm) or excited state (1190nm) was demonstrated in a quantum dot laser. Picosecond pulses were generated at a repetition rate of 21GHz and 20.5GHz, for the ground and excited s

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33

Liu, Huolong. "Modeling and control of batch pulsed top-spray fluidized bed granulation." Thesis, De Montfort University, 2014. http://hdl.handle.net/2086/11006.

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In this thesis, a thorough study of the batch top-spray fluidized bed granulation was carried out including experimental study, population balance model (PBM), computational fluid dynamic (CFD) study and control strategy development. For the experimental study, the influence variables of pulsed frequency, binder spray rate and atomization pressure of a batch top-spray fluidized bed granulation process were studied using the Box-Behnken experimental design method. Different mathematical models were developed to predict the mean size of granules, yield, relative width of granule distribution, Ha

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34

Kean, Peter N. "Generation and nonlinear propagation of ultrashort near infrared laser pulses." Thesis, University of St Andrews, 1990. http://hdl.handle.net/10023/14317.

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By utilising a CW mode-locked Nd:YAG pump laser an experimental study of self-phase modulation (SPM) and stimulated Raman scattering (SRS) in single mode optical fibres has been conducted. The dependence of the spectral broadening due to SPM upon the launched optical power was observed to obey a linear relationship in agreement with a simple theory. A deviation from this occurred for high input powers due to the onset of stimulated Raman scattering which caused a preferential depletion of the leading edge of the pump pulse and an increased spectral broadening to the long wavelength side of the

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35

Сачанова, Юлія Іванівна. "Електрохімічне формування покривів сплавами і композитами Fe–Co–Mo(MoOₓ)". Thesis, Національний технічний університет "Харківський політехнічний інститут", 2019. http://repository.kpi.kharkov.ua/handle/KhPI-Press/43993.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.17.03 – Технічна електрохімія. – Національний технічний університет «Харківський політехнічний інститут», Харків, 2019. Дисертаційну роботу присвячено розробці гальванохімічної технології покривів тернарними сплавами і композитами системи ферум-кобальт-молібден з підвищеним рівнем функціональних властивостей на підставі гіпотези про інкорпорацію оксидів тугоплавких компонентів як інтермедіатів електродних реакцій, до складу металевої матриці. Обґрунтовано компонентний склад електроліту та співвідношення конц

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Milovanovic, Mihailo. "A study of active mode-locking of external cavity semiconductor lasers." Thesis, University College London (University of London), 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261067.

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Major, Arkady. "Diode-pumped passively mode-locked ultrashort pulse solid-state lasers." Thesis, University of Strathclyde, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.273384.

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Gouveia, Neto Artur da Silva. "Femtosecond pulse generation and propagation in single-mode optical fibres." Thesis, Imperial College London, 1988. http://hdl.handle.net/10044/1/47085.

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Ettinger, Robert Dolph. "Passive mode-locking theory for conventional and colliding-pulse lasers." Thesis, Imperial College London, 1986. http://hdl.handle.net/10044/1/38003.

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40

Conlon, Patrick Joseph. "Ultra-short pulse generation with a Cr'4'+:YAG laser." Thesis, Imperial College London, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320180.

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41

Matos, Antonio P. "Characterization and application of four-layer semiconductor structures in pulse mode operation." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2006. http://library.nps.navy.mil/uhtbin/hyperion/06Sep%5FMatos.pdf.

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Thesis (M.S. in Physics)--Naval Postgraduate School, September 2006.<br>Thesis Advisor(s): Gamani Karunasiri, James H. Luscombe. "September 2006." Includes bibliographical references (p. 69-70). Also available in print.

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Nikitichev, Daniil I. "High power ultra-short pulse quantum-dot lasers." Thesis, University of Dundee, 2012. https://discovery.dundee.ac.uk/en/studentTheses/b7cec111-5ed7-4020-9fad-794d817e8f61.

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In this thesis, novel multi-section laser diodes based on quantum-dot material are designed and investigated which exhibit a number of advantages such as low threshold current density; temperature-insensitivity and suppress carrier diffusion due to discrete nature of density of state of quantum-dots. The spectral versatility in the range of 1.1 µm – 1.3 µm wavelengths is demonstrated through novel mode-locking regimes such as dual-wavelength mode-locking, wavelength bistability and broad tunability. Moreover, broad pulse repetition rate tuning using an external cavity configuration is presente

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Wollensak, Gregor, Felix Muchamedjarow, and Richard Funk. "Evaluation of Treatment by Pulsed Electromagnetic Fields in a Rabbit Hyphema Model." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-133633.

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Purpose: Previous clinical studies have suggested a positive effect of low-frequency pulsed electromagnetic fields (PEMF) on wound healing and inflammation in the eye. We tried to test the value of PEMF treatment in a hyphema animal model with well-defined conditions. Methods: After injection of citrated autologous blood for the production of hyphema, 16 rabbit eyes were treated with 10 or 20 mT for 60 min on 4 days within the postoperative week. Two control groups with hyphema alone (n = 8) and PEMF irradiation without hyphema (n = 4) were also included. The rate of resorption was recorded da

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Wollensak, Gregor, Felix Muchamedjarow, and Richard Funk. "Evaluation of Treatment by Pulsed Electromagnetic Fields in a Rabbit Hyphema Model." Karger, 2003. https://tud.qucosa.de/id/qucosa%3A27522.

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Purpose: Previous clinical studies have suggested a positive effect of low-frequency pulsed electromagnetic fields (PEMF) on wound healing and inflammation in the eye. We tried to test the value of PEMF treatment in a hyphema animal model with well-defined conditions. Methods: After injection of citrated autologous blood for the production of hyphema, 16 rabbit eyes were treated with 10 or 20 mT for 60 min on 4 days within the postoperative week. Two control groups with hyphema alone (n = 8) and PEMF irradiation without hyphema (n = 4) were also included. The rate of resorption was recorded d

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Damiano, Rafael Gaspar. "Modelagem estocástica da demanda individualizada de água residencial." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/18/18138/tde-18032019-165703/.

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A modelagem da demanda de água residencial fornece importantes subsídios ao dimensionamento e gerenciamento de redes de abastecimento de água. O comportamento desta demanda pode ser descrito através de processos estocásticos, caracterizados pela ocorrência de pulsos retangulares de demanda de água ao longo do tempo. Nesse contexto, este trabalho de pesquisa teve como objetivos monitorar e modelar a demanda de água residencial através dos modelos estocásticos dos pulsos retangulares de Neyman Scott (NSRP) e dos Pulsos Totais (OP). Enquanto que no modelo NSRP há a tentativa de simular a demanda

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Cord, Gregory A. "Free electron laser short pulse simulation and two-mode sideband analysis." Thesis, Monterey, California. Naval Postgraduate School, 1991. http://hdl.handle.net/10945/28234.

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Gomes, A. S. L. "Picosecond pulse compression and nonlinear processes in single mode optical fibres." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/38334.

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Rasmeni, Sibusiso Wiseman. "Simulation of the switched reluctance machine under single pulse mode operation." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53590.

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Thesis (MScEng)--University of Stellenbosch, 2003.<br>ENGLISH ABSTRACT: Two distinct simulation methods have been developed to simulate the single and the multi-phase excited current waveforms of the switched reluctance machine (SRM) under single pulse mode operation. These simulation methods are explained and evaluated in this thesis. A non-commercial finite element package that takes the SRM's nonlinear magnetic property into account is used in this regard. The simulation program uses the finite element solution directly during the simulation. Both simulation methods have been investi

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MacFarlane, Duncan Leo. "Ultrashort Pulse Production in Synchronously Pumped Mode-Locked Dye Laser Systems." PDXScholar, 1989. http://pdxscholar.library.pdx.edu/open_access_etds/1392.

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The concern of this dissertation is the understanding and improvement of a class of lasers that is responsible for some of the shortest optical pulses available today. In particular, we seek ways to produce from synchronously pumped mode-locked dye laser systems, shorter pulses of higher intensity with improved pulse-to-pulse consistency. Specific topics.that are discussed herein include the study of the role of the pump pulse in synchronously pumped mode-locked lasers, the study of the pulse shaping and shortening due to an intracavity saturable absorber, and the study of a fundamental pulse

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Popa, Daniel. "Ultrafast fiber lasers mode-locked by carbon nanotubes and graphene." Thesis, University of Cambridge, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.648103.

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