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Dissertations / Theses on the topic 'Mach-Zehnder modulators'

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Published: 4 June 2021
Last updated: 11 February 2022

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1

Nguyen, Giang Thach, and thach nguyen@rmit edu au. "Efficient Resonantly Enhanced Mach-Zehnder Optical Modulator on Lithium Niobate." RMIT University. Electrical and Computer Engineering, 2006. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20070118.162330.

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Photonic links have been proposed to transport radio frequency (RF) signals over optical fiber. External optical modulation is commonly used in high performance RF-photonic links. The practical use of optical fiber to transport RF signals is still limited due to high RF signal loss. In order to reduce the RF signal loss, highly efficient modulators are needed. For many applications, modulators with broad bandwidths are required. However, there are applications that require only a narrow bandwidth. For these narrow-band applications, the modulation efficiency can be improved through the resonan
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2

Peng, Geng 1968. "The waveguide design for wide band Ti : LiNbO3 Mach-Zehnder intensity modulators /." Thesis, McGill University, 1998. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=20798.

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In this thesis, the waveguide design characterization for wide-band Ti : LiNbO3 Mach-Zehnder electro-optical interferometric intensity modulators (Z-cut substrate) has been performed using a combination of the effective index method and the 2D finite-difference vectorial beam propation method (FD-VBPM). For the passive aspect of the device, to minimize the propagation loss, the coherent coupling effect of radiation modes has been studied as well as the effectiveness of a cosine-generated Y-branch and a notched Y-branch in comparison with the conventional sharp-bend Y-branch. By making use of t
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3

Peng, Geng. "The waveguide design for wide band Ti:LiNbO¦3 Mach-Zehnder intensity modulators." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0004/MQ44101.pdf.

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4

Ferguson, Anna. "The design and characterisation of GaAs/AlGaAs waveguides and Mach-Zehnder modulators." Thesis, University of Leeds, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.410758.

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5

Jones, Warren Richard. "Investigation of Mach-Zehnder modulators in the context of fibre supported mm-wave communications." Thesis, Bangor University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261414.

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6

Abel, Stefan. "Dispositifs électro-optiques à base de titanate de baryum épitaxié sur silicium pour la photonique intégrée." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENT004/document.

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En premier lieu, des couches minces épitaxiales ont été obtenues sur des substrats de silicium grâce à l’utilisation de l’épitaxie par jets moléculaire et de couches tampons de titanate de strontium SrTiO3. Une technique de croissance par co-déposition a été développée de manière à obtenir un rapport Ba:Ti proche de la stoechiométrie, et ce afin d’éviter la formation de défauts cristallins dans la couche de BaTiO3. Le matériau déposé cristallise dans une structure de symétrie quadratique, ce qui est unpré-requis pour l’obtention de propriétés électro-optiques. De plus, selon les conditions de
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7

Giuglea, Alexandru, Guido Belfiore, Mahdi Khafaji, Ronny Henker, Despoina Petousi, Georg Winzer, Lars Zimmermann, and Frank Ellinger. "Comparison of Segmented and Traveling-Wave Electro-Optical Transmitters Based on Silicon Photonics Mach-Zehnder Modulators." Institute of Electrical and Electronics Engineers (IEEE), 2018. https://tud.qucosa.de/id/qucosa%3A35393.

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This paper presents a brief study of the two most commonly used topologies - segmented and traveling-wave - for realizing monolithically integrated electro-optical transmitters consisting of Si-photonics Mach-Zehnder modulators and their electrical drivers. To this end, two new transmitters employing high swing breakdown voltage doubler drivers were designed in the aforementioned topologies and compared with regard to their extinction ratio and DC power consumption at the data rate of 30 Gb/s. It is shown that for the targeted data rate and extinction ratio, a considerably lower power consumpt
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8

Aimone, Alessandro [Verfasser], Martin [Akademischer Betreuer] Schell, Martin [Gutachter] Schell, and Antonella [Gutachter] Bogoni. "InP segmented Mach-Zehnder modulators with advanced EO functionalities / Alessandro Aimone ; Gutachter: Martin Schell, Antonella Bogoni ; Betreuer: Martin Schell." Berlin : Technische Universität Berlin, 2016. http://d-nb.info/1156016681/34.

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9

Ferrotti, Thomas. "Design, fabrication and characterization of a hybrid III-V on silicon transmitter for high-speed communications." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEC054/document.

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Depuis plusieurs années, le volume de données échangé à travers le monde augmente sans cesse. Pour gérer cette large quantité d’information, des débits élevés de transmission de données sur de longues distances sont essentiels. Puisque les interconnections à base de cuivre ne peuvent pas suivre cette tendance, des systèmes de transmission optique rapides sont requis dans les centre de données. Dans ce contexte, la photonique sur silicium est considérée comme une solution pour obtenir des circuits photoniques intégrés à un coût réduit. Bien que cette technologie ait connu une croissance signifi
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10

Bhatambrekar, Nishant. "Realizing a fractional volt half-wave voltage in Mach-Zehnder modulators using a DC biased push-pull method and synthesis and characterization of indole based NLO chromophores for improving electro-optic activity /." Thesis, Connect to this title online; UW restricted, 2006. http://hdl.handle.net/1773/11606.

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11

Lange, Sophie Gloria [Verfasser], Klaus [Akademischer Betreuer] Petermann, Klaus [Gutachter] Petermann, Martin [Gutachter] Schell та Markus-Christian [Gutachter] Amann. "Optical feedback effects within 1.55 μm InP-based DFB laser integrated Mach-Zehnder modulators for up to 100 GBd data transmission / Sophie Gloria Lange ; Gutachter: Klaus Petermann, Martin Schell, Markus-Christian Amann ; Betreuer: Klaus Petermann". Berlin : Technische Universität Berlin, 2019. http://d-nb.info/1185571809/34.

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12

Dye, S. P. "Compensation techniques for Mach Zehnder intensity modulator nonlinearities." Thesis, University of Kent, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308829.

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13

Prades, Jérémie. "Conception d’un modulateur électro-optique Mach Zehnder 100 Gbits/s NRZ sur silicium." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0205/document.

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Le développement permanent des applications informatiques telles que le stockage de masse, le calcul intensif et les communications large bande, encourage l’émergence de nouvelles technologies de communication. D’une part, les communications à travers des interconnexions métalliques approchent de leurs limites intrinsèques en termes d’énergie, surface et coût par bit. D’autre part, la photonique hybride conventionnelle, basée sur des assemblages 2D/3D de composants photoniques en technologies III-V, ne peut pas être complètement intégrée. Le développement de nouvelle architecture photonique su
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14

Radouani, Rachid Fontana Marc Abdi Farid. "Dérive dans les modulateurs électro-optiques Mach-Zehnder analyse physique et résolution /." [S.l.] : [s.n.], 2006. ftp://ftp.scd.univ-metz.fr/pub/Theses/2006/Radouani.Rachid.SMZ0622.pdf.

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15

Radouani, Rachid. "Dérive dans les modulateurs électro-optiques Mach-Zehnder : analyse physique et résolution." Metz, 2006. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/2006/Radouani.Rachid.SMZ0622.pdf.

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Les modulateurs développés actuellement pour les télécommunications optiques à haut débit souffrent généralement, dans leur partie DC, d’un phénomène de dérive, dont les causes ne sont pas totalement élucidées. Afin de trouver des origines de cette dérive nous avons commencé par caractériser un modulateur Mach-Zehnder commercial. Ceci nous a permis d’identifier l’existence de trois phénomènes : un premier phénomène à temps de réponse rapide lié à la couche de silice, un deuxième lié à l’anisotropie du substrat et un troisième phénomène corrélé aux hétérogénéités de surface induites lors de la
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16

KHALFALLAH, Sabry. "Modulateurs de cohérence en optique intégrée sur semiconducteurs III.V : guide biréfringent et interféromètre de Mach-Zehnder." Phd thesis, Université Paul Sabatier - Toulouse III, 1997. http://tel.archives-ouvertes.fr/tel-00010242.

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Cette étude porte sur la conception, la réalisation et la caractérisation de modulateurs de cohérence intégrés sur substrats semiconducteurs III-V. Nous expliquons tout d'abord le principe de la modulation de cohérence, technique particulière de codage optique appliquée à la transmission et au multiplexage de signaux, qui repose sur l'introduction dans un interféromètre à deux ondes d'un retard optique supérieur à la longueur de cohérence de la source optique. Nous avons réalisé un premier modulateur de cohérence, interféromètre à polarisation à base de guide d'onde optique ruban fortement bir
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17

KHALFALLAH, SABRY. "Modulateurs de coherence en optique integree sur semiconducteurs iii-v : guide birefringent et interferometre de mach-zehnder." Toulouse 3, 1997. http://www.theses.fr/1997TOU30235.

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Cette etude porte sur la conception, la realisation et la caracterisation de modulateurs de coherence integres sur substrats semiconducteurs iii-v. Nous expliquons tout d'abord le principe de la modulation de coherence, technique particuliere de codage optique appliquee a la transmission et au multiplexage de signaux, qui repose sur l'introduction dans un interferometre a deux ondes d'un retard optique superieur a la longueur de coherence de la source optique. Nous avons realise un premier modulateur de coherence, interferometre a polarisation a base de guide d'onde optique ruban fortement bir
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18

Pawela, Yvan. "Etude de la correction du point de fonctionnement de modulateurs éléctro-optiques intégrés sur niobate de lithium par laser femtoseconde." Besançon, 2012. http://www.theses.fr/2012BESA2037.

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Ces recherches visent a développer une technique d'usinage du niobate de lithium par laser femtoseconde pour des applications en optique intégrés. Cette approche originale permet de corriger, post fabrication et en direct, le point de fonctionnement statistique des modulateurs d'intensité basés sur une architecture d'interféromètre de Mach-Zehnder. En théorie, les modulateurs d'intensité sont dans l'état passant quand ils sont au repos. C'est à dire que la point de fonctionnement se trouve au maximum de la fonction de transfert modulateur. En réalité, les techniques de fabrication par photolit
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19

Fehrman, Cory Emily Marie. "Fabrication of a Deoxyribonucleic Acid Polymer Ridge Waveguide Electro-Optic Modulator by Nanoimprint Lithography." University of Dayton / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1398419640.

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20

Cavaco, Telmo Filipe Pedrosa. "Compensation of MZ-IQ-modulator nonlinearity based on FPGA algorithms." Master's thesis, Universidade de Aveiro, 2013. http://hdl.handle.net/10773/12677.

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Mestrado em Engenharia Electrónica e Telecomunicações<br>Nos últimos anos, a crescente necessidade de largura de banda e a evolução das técnicas de processamento digital de sinal renovaram o interesse pelos sistemas de comunicação ópticos coerentes. O modulador IQ assume-se como um componente chave nestes transmissores, sendo responsável pela conversão de informação do domínio eléctrico para o domínio óptico. Os moduladores Mach-Zehnder que constituem este dispositivo recebem sinais de drive com uma excursão controlada, garantindo a utilização de uma região aproximadamente linear das suas funç
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21

Barč, Andrej. "Přenos radiofrekvenčního signálu optickým vláknem." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442409.

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This work deals with the transmission of optical radiation modulated by a radio frequency signal through an optical fiber. Furthermore, it describes the principles of communication and area coverage. It points out the practical use of components located in the communication chain of this system. Explains the functionality of the properties and the division of individual components. It introduces the benefits and limitations of this system. It further describes the creation of a topology suitable for laboratory measurement of RoF technology. Provides experimental measurement of C-band parameter
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22

Chen, Chii-Chang. "Etude des variations de phase de modulateurs optiques intégrés à base de LiNbO3 induites par ablation laser." Besançon, 1998. http://www.theses.fr/1998BESA2034.

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Cette thèse se situe dans le cadre des télécommunications optiques appliquées aux réseaux locaux. Elle s'applique plus particulièrement aux transmissions bidirectionnelles impliquant une source lumineuse installée au niveau du central. Le but de cette étude est de réaliser le miroir électro-optique de type Mach-Zehnder replié installé chez abonné caractérisé par son indépendance à l'état de polarisation de la lumière incidente lors de la propagation dans la fibre optique monomode de transmission. Les dispositifs sont réalisés à partir de cristaux de niobate de lithium dont l axe de propagation
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23

El, Mansouri Ibrahim. "Sources impulsionnelles picosecondes tout optique à très haut débit : applications aux télécommunications optiques." Thesis, Dijon, 2013. http://www.theses.fr/2013DIJOS064/document.

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Ce mémoire de thèse présente les travaux effectués pour la réalisation de sources optiques fibrées d’impulsions picosecondes cadencées à 40 GHz dans la bande C des télécommunications. Dans une première partie, nous présentons des études numériques et expérimentales mises en place pour la génération d’un train d’impulsions cadencé à 40 GHz par la compression non-linéaire d’un battement sinusoïdal via un processus de mélanges à quatre ondes multiples. Afin d’obtenir des impulsions stables, le battement sinusoïdal initial est obtenu par la modulation en intensité d’un signal continu grâce à un mo
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24

Tsou, Benny Pen-Cheng. "Electrooptic mach-zehnder modulators in gallium arsenide." Thesis, 1993. http://hdl.handle.net/2429/1511.

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External travelling-wave modulators, utilizing the electrooptic effect, are one class of devices currently being investigated for converting electrical signals to optical signals in applications involving high-speed data transmission. Modulators fabricated on semiconductor substrates, such as GaAs and InP, are particularly attractive in that there exists the possibility of monolithic integration of these devices with other optoelectronic components. The bandwidths of this type of modulator are limited by the velocity mismatch between the microwave and the optical wave, where, in these compound
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25

MacKay, Alex William. "Complex Phase Biasing of Silicon Mach-Zehnder Interferometer Modulators." Thesis, 2014. http://hdl.handle.net/1807/44043.

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A new any-point biasing scheme for Mach-Zehnder interferometer modulators which considers the complex phase is proposed. The Mach-Zehnder arm loss imbalance (imaginary part of the phase bias) is found by slightly perturbing the real and imaginary parts of the phase in each arm with low frequency pilot tones and monitoring and manipulating the spectral content at the output. This technique can be used to extend the possible extinction ratio, reduce the phase error, and better quantify the system chirp but also has some performance degradations which are also quantified and discussed. Simulation
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26

Lee, Bo-Yuan, and 李博淵. "Si and C-rich SiC Based Mach-Zehnder Modulators." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/kj277c.

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碩士<br>國立臺灣大學<br>光電工程學研究所<br>107<br>In this thesis, the silicon-based Mach-Zehnder modulator and the C-rich SiCx based micro-ring assisted Mach-Zehnder modulator were analyzed to achieve high-speed data transmission whatever utilizing the electro-optic effect or all-optical nonlinear Kerr effect. The single-arm driven asymmetric Si MZM demonstrates the high-speed data transmission for short- and long-reach data center applications with the non-return-to-zero on-off keying (NRZ-OOK) and 4-level pulse amplitude modulation (PAM-4). The C-rich SiCx micro-ring assisted MZM waveguide was simulated, f
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27

Chen, Yin-Jui, and 陳盈瑞. "Design and Analysis of High Speed Silicon Mach-Zehnder Optical Modulators and Germanium Photodetectors." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/eg87t2.

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碩士<br>國立清華大學<br>光電工程研究所<br>107<br>With continuous demand for data transmission during the past few years. This has resulted in an unprecedented demand in the speed and volume of data transmission. Compared with the electric transmission system, the optical transmission system has lower energy loss and has higher transmission speed. The main devices of this thesis are high-speed silicon electro-optical modulators and high-speed germanium photodetectors. We design and integrate the above two devices to construct silicon photonic integrated circuits for radio-over-fiber system with upload and dow
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28

Chung, Wei-Lun, and 鐘偉綸. "Design and Analysis of the Travelling Wave Electrode for High Speed Silicon Mach-Zehnder Optical Modulators." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/7syq88.

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碩士<br>國立清華大學<br>光電工程研究所<br>106<br>In the past decade, a significant increase in Internet access is driven by an abundance of cloud-based storage and computing, high-definition multimedia streaming, and a lot of Internet services. This has resulted in an unprecedented demand in the speed and volume of data transmission. Compared with the electric transmission system, the optical transmission system has lower power consumption and has higher transmission speed. In order to implement a high-speed optical transmission system, designing a high-speed electro-optical modulator that is able to convert
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29

Klein, Holger [Verfasser]. "Integrated InP Mach-Zehnder modulators for 100 Gbit/s Ethernet applications using QPSK modulation / vorgelegt von Holger Klein." 2010. http://d-nb.info/1010051199/34.

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30

Palaniappan, Arun. "Modeling, Optimization and Power Efficiency Comparison of High-speed Inter-chip Electrical and Optical Interconnect Architectures in Nanometer CMOS Technologies." Thesis, 2010. http://hdl.handle.net/1969.1/ETD-TAMU-2010-12-8618.

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Inter-chip input-output (I/O) communication bandwidth demand, which rapidly scaled with integrated circuit scaling, has leveraged equalization techniques to operate reliably on band-limited channels at additional power and area complexity. High-bandwidth inter-chip optical interconnect architectures have the potential to address this increasing I/O bandwidth. Considering future tera-scale systems, power dissipation of the high-speed I/O link becomes a significant concern. This work presents a design flow for the power optimization and comparison of high-speed electrical and optical links at a
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31

Hsiung, Yu Hsiu, and 余信雄. "A study of GaAs semiconductor Mach-Zehnder modulator." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/35646965501353345832.

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32

Ming, Hsu Jui, and 徐瑞明. "A study of integration of phase modulator and Mach-Zehnder modulator." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/17483214266779539989.

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33

王耀常. "Design and improvement of the broadband mach-zehnder optical modulator." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/34882806287298784976.

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34

Chen, Cho-Yan, and 陳卓彥. "Fabrication of Blue-Laser Zn-Ni Co-diffused Mach-Zehnder Modulator." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/63102397652415851181.

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碩士<br>國立臺灣大學<br>光電工程學研究所<br>93<br>In this work, Zn-Ni:LiNbO3 single-mode waveguides and Mach-Zehnder modulators operated at blue-laser wavelength are demonstrated for the first time. To support the fundamental mode only, the largest linewidth of the Zn-Ni co-diffused waveguides should be about 1.5um, which is smaller than that of Ti-diffused waveguides, 2.5um. The optical confinement of the waveguides is optimized by diffusing at 830ºC for 60min when the thicknesses of nickel and zinc are 100Å and 500Å, respectively. Moreover, the Zn-Ni:LiNbO3 waveguides are free of lithium out-diffusion as th
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35

Hsien, Tsai Cheng, and 蔡政賢. "Monolithic Integration of a PIN Photodiode and Mach-Zehnder Electrooptical Modulator." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/90258875380599911966.

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36

Shu-YuChen and 陳淑瑀. "Spatial Light Modulator Coding effect on Measuring Image Objects over Mach-Zehnder Interferometry." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/40312419256286686236.

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碩士<br>國立成功大學<br>光電科學與工程學系<br>102<br>Mach-Zehnder Interferometer (MZI) can be used to acquire the optical thickness of samples by utilizing the interference of two lights. Recently, some researchers mentioned that if a dispersion element is put in front of the interferometer, the coherence envelope of the signal will be broadened. The reason is that when the light passes the dispersion element, different refractive indices of different wavelengths in the dispersive medium. The intensity of the interference signal will oscillates, which leads to beat effect. As a result, multiple splitting of th
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Tsai, Yan-Tso, and 蔡晏佐. "Design and Fabrication of Blue-Laser Mach-Zehnder Modulator with Multi-Mode Interference Structures." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/24302402497170439214.

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碩士<br>國立臺灣大學<br>光電工程學研究所<br>96<br>In this work, Zn-Ni:LiNbO3 1×2 multimode interference power splitters and two kinds of Mach-Zehnder modulators operating at blue-laser wavelength are demonstrated for the first time. To support the fundamental mode only, the linewidth of the Zn-Ni co-diffused waveguides is found to be 1.6µm, and the optimal optical confinement of the waveguides is obtained by diffusing at 830ºC for 90 min when the thicknesses of nickel and zinc are 100 Å and 500 Å, respectively. The best 1×2 multimode interference power splitter exhibits a transmission of 75.12% as the width a
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Chen, Shuo-Wei, and 陳碩偉. "Studies on Linearization of Mach-Zehnder Electrooptic Modulator Applied in Optical Fiber Analog Communications." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/19060866136198022543.

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39

Chen, Haitao [Verfasser]. "Development of an 80 Gbit/s InP-based Mach-Zehnder modulator / vorgelegt von Haitao Chen." 2007. http://d-nb.info/987073761/34.

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40

Tsai, Ying-Jhe, and 蔡英哲. "Design and Fabrication of Ridge Structure Mach-Zehnder Modulator with Gamma-Ray Irradiated Lithium Niobate." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/30386512507810604456.

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碩士<br>國立臺灣大學<br>電子工程學研究所<br>98<br>In this thesis, ridge Mach-Zehnder modulator is successfully fabricated by using proton exchange wet etching in gamma ray irradiated z-cut lithium niobate. To characterize the effect of gamma ray irradiation, the depth and the aspect ratio of the ridge structure are measured by surface profiler and electron microscope. Experimental results show that the depth and the aspect ratio of the gamma ray irradiated ridge structure are increased by about 30% and 87%, respectively. Owing to deeper vertical side walls, the optical field confinement is enhanced and the dr
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Wu, Po-I., and 吳柏毅. "The Intergraded Electromagnetic Field Sensor Combining a Micro Antenna with a LiNbO3 Mach-Zehnder Waveguide Modulator." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/82836834360565881625.

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碩士<br>國立成功大學<br>光電科學與工程研究所<br>94<br>The amplitude modulator of an electromagnetic field sensor using Ti diffusion process on Z-cut LiNbO3 and optical fiber link is improved by a Mach-Zehnder interferometer, whose Vπ is about 10V at 1550nm wavelength and the on-off extinction ratio is 23.8dB. In this thesis, the plane antenna was directly applied to suppress the volume and strengthen the connection between each part of the device for the purpose of optoelectronic intergraded circuit. After being ground and polished well, the device was coupled with fiber directly. Then the characteristic of the
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42

Chung, Kuo-Fang, and 鍾國方. "Optimization of bandwidth of Si-Based Lateral Junction Traveling Wave Mach-Zehnder Modulator by using Genetic Algorithm." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/kuzk3p.

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碩士<br>國立臺灣大學<br>光電工程學研究所<br>107<br>With the bloom of big data, Internet of things, and cloud computing in recent years, the need for the speed of data transmission is increasing. Thus, datacenters and the related transmission capacity have become important. Fortunately, the silicon photonic optical interconnect featuring large transmission capacity and long transmission distance is very suitable for the inter- and intra- datacenter data transmission. Leveraging the advantages of mature fabrication technology, low cost, and mass production from the Complementary Metal Oxide Semiconductor (CMOS)
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Yu-ChangHe and 何侑昌. "On Image Objects Phase/Amplitude Measurements and Resolution Enhancement Using Conjugated-Spatial Light Modulator in Mach-Zehnder Interferometer." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/90469749767117753524.

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碩士<br>國立成功大學<br>電腦與通信工程研究所<br>100<br>Mach-Zehnder interferometer is used to make lights interference and acquire the parameter characteristic of lights. We can equip optical device with Mach-Zehnder interferometer and arrange these optical device appropriately to do many applications. In the thesis, we present two applications. One is the measurement of the amplitude and phase of the light of a signal arm. The other is the resolution enhancement of object samples utilizing spatial light modulators. In the first application, we utilize spatial light modulators and linear polarizers to measure t
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You, Chao-Yuan, and 游朝元. "Fabrication of Mach-Zehnder Electro-Optic Modulator for Blue-Laser Wavelength Using Magnesium-Oxide-Induced Lithium-Outdiffused Waveguide." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/22755274219288040867.

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碩士<br>國立臺灣大學<br>光電工程學研究所<br>95<br>In this study, magnesium-oxide-induced lithium-outdiffusion (MILO) method is used to fabricate Mach-Zehnder electro-optic modulators on z-cut lithium niobate substrate for a blue laser source of wavelength 473nm. Similar devices fabricated by traditional annealed-proton-exchanged (APE) method are also prepared for comparison. Experimental data show that an MILO waveguide of width 3.2μm supports only single-mode when it is fabricated by sputtering a MgO thin-film of thickness 500Å and then diffusing at 1000°C for 30 min. Mach-Zehnder electro-optic modulator
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Lin, Hsiu-Sheng, and 林修聖. "Study and Design on Employing Single Mach-Zehnder Modulator with Optical Phase Conjugation Configuration for DWDM Long Haul Transmission System." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/2z6949.

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博士<br>國立臺北科技大學<br>電腦與通訊研究所<br>99<br>The optical communication system developed into a high speed and high capacity Dense Wavelength Division Multiplexing (DWDM) system employing a modulation format which has an effective scheme to reduce signal impairments producing nonlinear effects, amplified spontaneous emission and dispersion phenomenon. The return to zero differential phase shift keying (RZ-DPSK) modulation format in DWDM optical communication system provides greater dispersion immunity, a narrow spectrum width, lower nonlinear effect, a simple scheme and reduces cost effectively. In the
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Lee, Hao-Ti, and 李豪隄. "A Double-Transmission-Capacity Optical Transmitter by using a Mach-Zehnder External Modulator with Different Signals Modulated under Two Orthogonal Polarrization States." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/92136080553737812937.

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碩士<br>國立臺灣科技大學<br>電子工程系<br>89<br>IP and Gigabit Ethernet are the most common trend in data communication. But several problems exists. IP over DWDM needs to deal with control channel and baseband channel in the same wavelength. GBIC of Gigabit Ethernet has two port fibers for communication, but using one fiber is much better for the cost. In this thesis, we propose a novel E/O modulator architecture for solving these problems. With this new E/O modulator, two RF signals are modulating a same light but under two different polarization states. Hence, t
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