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Dissertations / Theses on the topic 'Frequency comb generation'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 January 2023

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1

Brother, Louis Reginald. "Terahertz optical frequency comb generation." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/10746.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.<br>Includes bibliographical references (leaves 191-195).<br>by Louis Reginald Brothers, Jr.<br>Ph.D.

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2

Del'Haye, Pascal. "Optical Frequency Comb Generation in Monolithic Microresonators." Diss., lmu, 2011. http://nbn-resolving.de/urn:nbn:de:bvb:19-130491.

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3

Wu, Chunbai 1980. "Raman optical frequency comb generation in hydrogen-filled hollow-core fiber." Thesis, University of Oregon, 2010. http://hdl.handle.net/1794/11052.

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xiv, 138 p. : ill. (some col.)<br>In this dissertation, we demonstrate the generation of optical Raman frequency combs by a single laser pump pulse traveling in hydrogen-filled hollow-core optical fibers. This comb generation process is a cascaded stimulated Raman scattering effect, where higher-order sidebands are produced by lower orders scattered from hydrogen molecules. We observe more than 4 vibrational and 20 rotational Raman sidebands in the comb. They span more than three octaves in optical wavelength, largely thanks to the broadband transmission property of the fiber. We found that

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4

Stumpf, Max Christoph. "Diode-pumped solid-state lasers for frequency comb generation." Konstanz Hartung-Gorre, 2010. http://d-nb.info/1000806235/04.

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5

Del´Haye, Pascal [Verfasser]. "Optical Frequency Comb Generation in Monolithic Microresonators / Pascal Del´Haye." München : Verlag Dr. Hut, 2011. http://d-nb.info/1013526236/34.

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6

Schratwieser, Thomas Christian. "High-repetition-rate Yb-doped lasers for frequency comb generation." Thesis, Heriot-Watt University, 2014. http://hdl.handle.net/10399/2841.

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The research presented in this thesis addresses the development of directly diode pumped Yb3+:KY(WO4)2 and Yb:fibre lasers, operating at several-hundred-MHz repetition frequencies and investigates their suitability as the basis of high-efficiency, convenient, low-cost and moderate precision optical frequency combs. The design, construction, and characterisation of a 1042-nm 1-GHz Yb3+:KY(WO4)2 femtosecond laser is presented, achieving pulses with an average power output of 770 mW, bandwidths of 3.8 nm, and durations of 278 fs. The laser achieved an opticalto- optical conversion efficiency and

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7

Ozharar, Sarper. "STABLE OPTICAL FREQUENCY COMB GENERATION AND APPLICATIONS IN ARBITRARY WAVEFORM GENERATION, SIGNAL PROCESSING AND OPTICAL DATA M." Doctoral diss., University of Central Florida, 2008. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3516.

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This thesis focuses on the generation and applications of stable optical frequency combs. Optical frequency combs are defined as equally spaced optical frequencies with a fixed phase relation among themselves. The conventional source of optical frequency combs is the optical spectrum of the modelocked lasers. In this work, we investigated alternative methods for optical comb generation, such as dual sine wave phase modulation, which is more practical and cost effective compared to modelocked lasers stabilized to a reference. Incorporating these comblines, we have generated tunable RF tones usi

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8

Ozharar, Sarper. "Stable optical frequency comb generation and applications in arbitrary waveform generation, signal processing and optical data mining." Orlando, Fla. : University of Central Florida, 2008. http://purl.fcla.edu/fcla/etd/CFE0002388.

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9

Schließer, Albert. "Cavity optomechanics and optical frequency comb generation with silica whispering-gallery-mode microresonators." Diss., München Hut, 2009. http://edoc.ub.uni-muenchen.de/10940/.

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10

Zajnulina, Marina [Verfasser], and Martin M. [Akademischer Betreuer] Roth. "Optical frequency comb generation in optical fibres / Marina Zajnulina ; Betreuer: Martin M. Roth." Potsdam : Universität Potsdam, 2015. http://d-nb.info/1218400218/34.

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11

Silva, Claudio Fernandes Castanheira. "Dense WDM channel synthesis using optical frequency comb generation and locked laser filtering techniques." Thesis, University College London (University of London), 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.399710.

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12

Panapakkam, Venkatesan Vivek. "Optical frequency comb generation using InP based quantum-dash/ quantum-well single section mode-locked lasers." Thesis, Evry, Institut national des télécommunications, 2016. http://www.theses.fr/2016TELE0024/document.

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Les interconnections optiques dans les fermes de données (data centers) nécessitent la mise au point de nouvelles approches technologiques pour répondre aux besoins grandissants en composants d’interface respectant des cahiers de charge drastiques en termes de débit, coût, encombrement et dissipation d’énergie. Les peignes de fréquences optiques sont particulièrement adaptés comme nouvelles sources optiques, à mêmes de générer un grand nombre de porteuses optiques cohérentes. Leur utilisation dans des systèmes de transmission en multiplexage de longueurs d’onde (WDM) et exploitant de nouveaux

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13

Ozdur, Ibrahim Tuna. "Low noise, narrow optical linewidth semiconductor-based optical comb source and low noise RF signal generation." Doctoral diss., University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5009.

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Recently optical frequency combs and low noise RF tones are drawing increased attention due to applications in spectroscopy, metrology, arbitrary waveform generation, optical signal processing etc. This thesis focuses on the generation of low noise RF tones and stabilized optical frequency combs. The optical frequency combs are generated by a semiconductor based external cavity mode-locked laser with a high finesse intracavity etalon. In order to get the lowest noise and broadest bandwidth from the mode-locked laser, it is critical to know the free spectral range (FSR) of the etalon precisely.

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14

Goodell, Brian Carpenter, and Brian Carpenter Goodell. "Probing Intracavity Plasma Dynamics with Higher-Order Transverse Modes." Thesis, The University of Arizona, 2017. http://hdl.handle.net/10150/625686.

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Extreme ultraviolet (XUV) frequency combs exhibit promise for enabling high-precision spectroscopic measurements of myriad chemical species for the first time. Coherent XUV radiation can be generated through high harmonic generation (HHG) in femtosecond enhancement cavities. HHG efficiency is limited by nonlinear phase shifts induced by residual intracavity plasma. The goal of this work is to gain insight regarding plasma dynamics in order to allay the detrimental effects of plasma interactions. Our approach is to conduct simulations of cavity pump-probe experiments by probing with higher-orde

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15

Tzenov, Petar Boykov [Verfasser], Christian [Akademischer Betreuer] Jirauschek, Hans-Joachim [Gutachter] Bungartz, and Christian [Gutachter] Jirauschek. "Modeling and simulations of quantum cascade lasers for frequency comb generation / Petar Boykov Tzenov ; Gutachter: Hans-Joachim Bungartz, Christian Jirauschek ; Betreuer: Christian Jirauschek." München : Universitätsbibliothek der TU München, 2018. http://d-nb.info/1181946751/34.

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16

Muñoz-Arcos, Christian Daniel. "Optical Microwave Signal Generation for Data Transmission in Optical Networks." Thesis, Toulouse, ISAE, 2020. http://www.theses.fr/2020ESAE0013.

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La croissance des services de télécommunications et l’augmentation du trafic de données àl’échelle mondiale favorise le développement et l’intégration de différents réseaux de transmissionde données. Un exemple de ce développement est constitué par les réseaux defibres optiques, qui sont actuellement chargés d’interconnecter les continents par des liaisonslongues avec des taux de transfert importants. Les réseaux optiques, ainsi que les réseauxsupportés par d’autres moyens de transmission, utilisent des signaux électriques à certainesfréquences pour la synchronisation des éléments du réseau. L

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17

Lee, Jane. "Generation of VUV frequency combs in femtosecond enhancement cavity." Diss., The University of Arizona, 2010. http://hdl.handle.net/10150/145735.

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This dissertation is on the development of a laser system for the generation of femtosecond frequency combs in the vacuum-ultraviolet (VUV) via intracavity high-harmonic generation (HHG). The HHG process yields coherent vacuum ultraviolet (VUV) light resulting from the ionization of noble gases driven by intense near-IR femtosecond frequency combs in an optical enhancement cavity. An injection locked amplification cavity (fsAC) was developed in order to generate a high power femtosecond frequency combs based on a Ti:Sapphire oscillator. Detailed amplifier performance was investigated in order

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18

Vernaleken, Andreas. "Advances in generating high repetition rate EUV frequency combs." Diss., Ludwig-Maximilians-Universität München, 2013. http://nbn-resolving.de/urn:nbn:de:bvb:19-177511.

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19

Shen, Pengbo. "Optical frequency comb generator and millimetre-wave photonic local-oscillator systems." Thesis, University of Kent, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.445795.

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20

Pasquali, González Elisa Co (Elisa Carolina) 1975. "Wideband optical frequency comb generator using a phase velocity-matched lithium tantalate electro-optic modulator." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/47719.

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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1998.<br>Includes bibliographical references (leaves 74-75).<br>A wideband optical frequency comb generator can be built using an electro-optic modulator that is driven at a frequency of several GHz and that is enclosed in an optical cavity. When light is circulated within the optical cavity, multiple passes through the modulator produce a spectrum centered at the carrier frequency with hundreds of sidebands spaced at the modulation frequency, with a comb span limited only by the mater

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21

Tudorovskaya, Maria [Verfasser]. "Resonant high harmonic generation and extreme-ultraviolet frequency combs driven by few-cycle laser pulses / Maria Tudorovskaya." Hannover : Technische Informationsbibliothek und Universitätsbibliothek Hannover (TIB), 2015. http://d-nb.info/1078047596/34.

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22

Vernaleken, Andreas [Verfasser], and Theodor W. [Akademischer Betreuer] Hänsch. "Advances in generating high repetition rate EUV frequency combs / Andreas Vernaleken. Betreuer: Theodor W. Hänsch." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2013. http://d-nb.info/1065610165/34.

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23

Silva, Rui Miguel Horta Coelho da. "WDM-PON architecture with centralized generation of optical multi-carriers." Master's thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/14571.

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Mestrado em Engenharia Eletrónica e Telecomunicações<br>The rapid growth of the telecommunications area and the increasing demand for bandwidth by users has led to the need of develop the Wavelength-division multiplexed passive optical network (WDM-PON) architecture, which can increase the bandwidth of the existing network without the necessity of installing new fiber . A key technique for the high capacity WDM-PON networks is the generation of optical multi-carriers. This technique is the main focus point of this dissertation, which begins to look at the generation of optical multi-car

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24

Scherer, Lucas Giuliani. "Estudo, modelagem e controle de uma micro central hidrelétrica com utilização de gerador de indução auto-excitado." Universidade Federal de Santa Maria, 2012. http://repositorio.ufsm.br/handle/1/8503.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>In the last decade there has been a significant increase in interest in microgeneration technologies for electric power. Sources of hydraulic power generation, wind and solar technologies represent some of the important developments that have had arising from the research efforts aimed at this area of power generation. The reason for this interest is due to the consolidation of what is called future in terms of power generation, which is based on decentralization of power generation through interconnected centers of small generator

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25

Davila-Rodriguez, Josue. "External cavity mode-locked semiconductor lasers for the generation of ultra-low noise multi-gigahertz frequency combs and applications in multi-heterodyne detection of arbitrary optical waveforms." Doctoral diss., University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5621.

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The construction and characterization of ultra-low noise semiconductor-based mode-locked lasers as frequency comb sources with multi-gigahertz combline-to-combline spacing is studied in this dissertation. Several different systems were built and characterized. The first of these systems includes a novel mode-locking mechanism based on phase modulation and periodic spectral filtering. This mode-locked laser design uses the same intra-cavity elements for both mode-locking and frequency stabilization to an intra-cavity, 1,000 Finesse, Fabry-P&"233;rot Etalon (FPE). On a separate effort, a mode-lo

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26

Ferreira, Rafael Jales Lima. "Estudo de sistemas com multiportadoras ópticas ortogonais e coerentes." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/18/18155/tde-29042013-113736/.

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Neste trabalho a técnica de multiportadoras OFDM (Orthogonal Frequency Division Multiplexing), aplicada a sistemas ópticos, é estudada, com foco principal na geração e transmissão dos chamados supercanais ópticos modulados em altíssimas taxas (até Terabits/s). O OFDM prevê um melhor aproveitamento da largura de banda e, quando comparada à técnica FDM (Frequency Division Multiplexing), permite uma redução de aproximadamente 50% do espectro ocupado. Esta economia proporcionada pela técnica torna-a forte candidata para uso em redes ópticas reconfiguráveis, pois provê melhor eficiência espectral a

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27

Beltrán, Ramírez Marta. "Photonic Techniques for Next-Generation Integrated Optical Networks Based on Ultra-Wideband Radio / Técnicas Fotónicas para Redes Ópticas Integradas de Próxima Generación Basadas en Radio de Banda Ultra Ancha." Doctoral thesis, Universitat Politècnica de València, 2012. http://hdl.handle.net/10251/15576.

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La presenta Tesis Doctoral encuentra su ámbito de aplicación en redes de acceso ópticas de fibra hasta el hogar o FTTH (del inglés fibre-to-the-home). Las redes FTTH han sido ampliamente desplegadas en todo el mundo y se prevé que evolucionen hasta arquitecturas de multiplexación por división en longitud de onda o WDM(dle inglés wavelength division multiplexing). Conforme los requerimientos de capacidady ancho de banda por usuario para servicios de comunicación de banda ancha se incrementan continuamente, tecnologías tales como hybrid wireless-optical, radio de banda ultra ancha o UWB(del ing

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28

Marchesan, Gustavo. "Detecção de ilhamento em sistemas de distribuição com geração síncrona distribuída." Universidade Federal de Santa Maria, 2016. http://repositorio.ufsm.br/handle/1/3696.

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Nowadays due to the increase of renewable energy sources, Distributed Generations (DGs) assumed an important role in distribution and sub transmission systems. However, abnormal operating conditions of the distribution system may cause that the DG remains isolated from the main system and connected to part of distribution system feeding its local loads. This operating condition is known as DG islanding. There are many island detection techniques however they can fail in some situation, such as in cases of low power unbalance. This work aims to present three news passive island detection techni

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29

Siqueira, Jonathas de Paula. "Geração de harmônicos de pulsos laser de femtossegundo pela técnica de conversão de frequência em capilares preenchidos com gases nobres." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/76/76131/tde-09102012-113516/.

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O propósito principal desta tese foi a implementação e estudo da geração de pulsos laser de femtossegundos em comprimentos de onda curtos (ultravioleta profundo, ultravioleta de vácuo e ultravioleta extremo) pela técnica de conversão de frequência em capilar preenchido com gás nobre. Esta técnica de conversão de frequência tem feito diversas contribuições nas últimas décadas para o avanço da geração de pulsos laser ultracurtos nesta região espectral. O desenvolvimento de tais fontes de luz coerente possui importantes implicações nos estudos de espectroscopia resolvida no tempo em átomos, moléc

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30

Kornrumpf, Luiz Henrique Damato. "Algoritmos de tratamento de curvas para determinação de parâmetros de geradores síncronos através do ensaio de resposta em frequência utilizando metodologia com inversor de frequência." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/3/3143/tde-08032017-085403/.

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O ensaio de resposta em frequência em geradores síncronos vem ganhando espaço nas últimas décadas, porém o alto custo dos equipamentos empregados para realização do ensaio ainda é um empecilho, tanto para fabricantes como para consumidores finais. Este trabalho tem por objetivo complementar trabalhos anteriores, através do uso de redes neurais artificiais para identificação de padrões em ensaios realizados com equipamentos de baixo custo e baixa resolução. Através das redes neurais artificiais utilizadas é possível estimar novos pontos de ensaio sem que seja necessário um novo ensaio ou até me

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31

(6887678), Oscar E. Sandoval. "Electro-Optic Phase Modulation, Frequency Comb Generation, Nonlinear Spectral Broadening, and Applications." Thesis, 2019.

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<p>Electro-optic phase modulation can be used to generate high repetition rate optical frequency combs. The optical frequency comb (OFC) has garnered much attention upon its inception, acting as a crucial component in applications ranging from metrology and spectroscopy, to optical communications. Electro-optic frequency combs (EO combs) can be generated by concatenating an intensity modulator and phase modulator together. The first part of this work focuses on broadening the modest bandwidth inherent to the EO combs. This is achieved by propagation in a nonlinear medium, specifically propagat

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32

Del'Haye, Pascal [Verfasser]. "Optical frequency comb generation in monolithic microresonators / vorgelegt von Pascal Del'Haye." 2011. http://d-nb.info/1012242420/34.

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33

Yang, Bo-Yen, and 楊柏彥. "Study and Design on DWDM System by Ultra-flat Optical Frequency Comb Generation." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/4atgr4.

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碩士<br>國立臺北科技大學<br>電腦與通訊研究所<br>98<br>The dissertation applies Dual-drive Mach-Zehnder modulator goes with an oscillator and it takes one side of the modulator connects with phase shift and attenuator. The Optical Frequency Comb Generation (OFCG), consists of these components, is used to be transmission launching end.Moreover, it uses Polarization Controller (PC) to control the polarization angle of odd and even lasers, and then makes it orthogonal to diminish the effect of power superposition and crosstalk between lasers light export signals. The OFCG technology makes a laser producing 19 chann

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34

Schließer, Albert [Verfasser]. "Cavity optomechanics and optical frequency comb generation with silica whispering-gallery-mode microresonators / vorgelegt von Albert Schließer." 2009. http://d-nb.info/999625284/34.

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35

Suchkov, Sergey. "Active photonic systems with balanced gain and loss." Phd thesis, 2019. http://hdl.handle.net/1885/180637.

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In the age of information technology one of the main challenges for researches and engineers is to increase the efficiency of transmitting and processing of information. During long distance transmission, a carrier signal can experience attenuation and distortion. To restore and amplify the signal, active photonic systems are widely used. At the same time, all physical systems have losses, which are usually considered a negative effect and should be avoided. However, it was recently shown that if losses and gain in a system are mutually balanced, it demonstrates unique properties, which are no

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36

Chen, Zai Mian, and 陳再勉. "Implementation of optical comb generator and its frequency stabilization." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/45089571971469976760.

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Lu, Ping-Hsun, and 呂秉勳. "Study and Design of Bidirectional WDM-PON based on Optical Frequency Comb Generator and Colorless Technique." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/xkp3f3.

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碩士<br>國立臺北科技大學<br>電腦與通訊研究所<br>100<br>In the thesis, we propose Optical Frequency Comb Generation (OFCG) which consists of a Dual-drive Mach-Zehnder Modulator (DD-MZM), phase shift, attenuator, Electrical Amplifier (EA), and an oscillator. The proposed OFCG can be applied to bidirection Long-Reach Wavelength Division Multiplexing Passive Optical Network. Utilizes OFCG to generate 32 carriers as transmission channels, and the space among channels is 0.16 nm, which the even channels are chosen as the downstream channels with 10 Gbit/s bit rate. In addition, the odd channels which are chosen as th

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38

Conceição, Pedro Alexandre da. "Experimental Characterization of Photonic Integrated Circuits for Generation of Optical Coherent Combs." Master's thesis, 2021. http://hdl.handle.net/10316/99390.

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Dissertação de Mestrado Integrado em Engenharia Electrotécnica e de Computadores apresentada à Faculdade de Ciências e Tecnologia<br>Os pentes de frequência óptica têm uma ampla gama de aplicações e seu impacto nas comunicações ópticas não deve ser subestimado. A evolução dos seus geradores ajudou no rápido progresso visto neste campo.Os pentes gerados opticamente cresceram muito nos últimos anos, o baixo ruído de fase, a ampla faixa de sintonia e a imunidade a campos eletromagnéticos são as principais vantagens. Os pentes de frequência óptica tornaram-se essenciais em vários campos, como espe

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Chen, Ting-Han, and 陳庭漢. "Study and Design of Bidirectional WDM-PON based on Optical Frequency Comb Generator and Colorless Technology Integrated with Hybrid Fiber Amplifier." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/k3ny49.

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碩士<br>國立臺北科技大學<br>電腦與通訊研究所<br>101<br>In the thesis, we propose Optical Frequency Comb Generation (OFCG) which consists of a Dual-drive Mach-Zehnder Modulator (DD-MZM), phase shift, attenuator, Electrical Amplifier (EA), and an oscillator. The proposed OFCG can be applied to bidirection Long-Reach Wavelength Division Multiplexing Passive Optical Network. Utilizes OFCG to generate 76 carriers as transmission channels, and the space among channels is 0.16 nm, includes C-band and L-band. We use Hybrid Fiber Amplifier (HFA) as a power amplifier to compensate fiber attenuation and amplify spectra of

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Conceição, Filipe João Abrantes Soares da. "New hybrid modulation techniques for future generations of communications." Master's thesis, 2019. http://hdl.handle.net/10316/88126.

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Dissertação de Mestrado Integrado em Engenharia Electrotécnica e de Computadores apresentada à Faculdade de Ciências e Tecnologia<br>As próximas gerações de comunicações móveis, designada por 5ª geração (5G) e pós-5G, possuem requisitos ambiciosos, nos quais se destacam as muito elevadas taxas de transferência de dados, requisitos de elevada eficiência espetral e de potência e também flexibilidade de transmissão em condições de canais adversas e a taxas variáveis. A técnica Orthogonal Frequency Division Multiplexing (OFDM) tem vindo a ser a mais utilizada pois apresenta vantagens interessante

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