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Relevant bibliographies by topics / Electrical-optical modulator / Dissertations / Theses

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Dissertations / Theses on the topic 'Electrical-optical modulator'

Author: Grafiati

Published: 12 October 2024

Last updated: 31 July 2025

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1

Harston, Geofrey Craig. "Swift Electro-Optic Modulator." BYU ScholarsArchive, 2003. https://scholarsarchive.byu.edu/etd/107.

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The Silicon Wafer Integrated Fiber Technology, SWIFT, is a novel platform for the development of photonic devices. SWIFT is comprised of an optical fiber, specifically a D-fiber in this work, embedded into a V-groove etched into a silicon wafer. This provides a method to secure the fiber and allows the use of standard semiconductor industry equipment and techniques in latter processing for device fabrication. The SWIFT platform is used as the basis for the development of a polarimetric in-fiber electro-optic modulator. The modulator is based on the application of a nonlinear optical polymer,

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2

Carns, Jennifer. "Semiconductor Optical Amplifier as a Phase Modulator for Short-Pulse Synthetic Aperture Ladar and Vibrometry." University of Dayton / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1335278035.

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3

Zhou, Sichao. "Complex Optical Fields Generation Using a Vectorial Optical Field Generator." University of Dayton / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1461689435.

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4

Andrikogiannopoulos, Nikolas I. "RF phase modulation of optical signals and optical/electrical signal processing." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/42930.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2006.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references (p. 125-127).<br>Analog RF phase modulation of optical signals has been a topic of interest for many years, mainly focusing on Intensity Modulation Direct Detection (IMDD). The virtues of coherent detection combined with the advantages of Frequency Modulation, however, have not been explored thor

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5

Whitson, Michael J. (Michael Joshua). "Fourier-based optical analysis of a membrane mirror spatial light modulator." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/113448.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2017.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 209-214).<br>This thesis presents the operational theory and engineering numerical models for the operation of a schlieren-like Fourier optical system, used to read out a phase-only spatial light modulator (SLM) for phase to

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6

Nguyen, Thi Hao Nhi. "Broadband mid-infrared integrated electro-optical modulators and photodetectors in SiGe photonic circuits." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPAST108.

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La spectroscopie dans la plage de longueurs d'onde du moyen infrarouge (2-20 µm) est une technique cruciale pour détecter et identifier des substances chimiques et biologiques. Dans ce contexte, les circuits photoniques intégrés à base de silicium (Si) opérant dans cette plage spectrale sont hautement attractifs pour développer des systèmes de spectroscopie moyen infrarouge compacts, qui pourront avoir des applications dans la surveillance environnementale, le diagnostic médical et les communications spatiales. L'intégration de composants photoniques actifs, tels que des modulateurs électro-op

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7

Franco, Gabriella. "Optical and electrical frequency-modulated studies of nanocrystalline electrodes." Thesis, University of Bath, 1999. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285274.

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8

Venditti, Michael B. "Temperature dependence of QCSE modulator and detector efficiency for free-space optical interconnect applications." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0016/MQ55032.pdf.

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9

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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10

Krol, Mark Francis 1966. "High contrast, all-optical gallium aluminum indium arsenide multiple quantum well asymmetric reflection modulator at 1.3 μm". Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/291348.

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A high contrast, low intensity GaAlInAs/AlInAs multiple quantum well asymmetric Fabry-Perot reflection modulator for operation at 1.3 μm has been demonstrated. The reflection modulator takes advantage of the large absorptive and refractive nonlinearities associated with saturating the heavy-hole exciton resonance. We achieve an on/off contrast ratio in excess of 1000:1 (30 dB) and an insertion loss of 2.2 dB at a pump intensity of 30 kW/cm², corresponding to a carrier density of 4.5 x 10¹⁷ cm⁻³ The modulator was demonstrated to have a large operating bandwidth, achieving an on/off contrast rat

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11

Filiatrault-Brosseau, Daniel. "Design, implementation and characterization of a kinematically aligned, cascaded spot-array generator for a modulator-based free-space optical interconnect." Thesis, McGill University, 1999. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=30243.

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A large interest has been devoted to the use of optical interconnections in digital computer and digital telecommunication systems over the last few years. This interest is motivated by the promise of a greatly increased connectivity, lower power dissipation, and the compactness of interconnections that can be achieved with the use of this technology.<br>This thesis examines the design and the implementation of a modular spot-array generator for a modulator-based free-space optical interconnect. Two cascaded diffractive optical elements produce 4 x 8 clusters on a 1600 mum x 800 mum pitch, whe

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12

Park, Matthew (Matthew J. ). "An optical-electrical sub-sampling down-conversion receiver with continuous-time [Sigma] [Delta] modulation." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/33332.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2005.<br>In title on t.p., [Sigma] and [Delta] appear as the upper-case Greek letters.<br>Includes bibliographical references (p. 87-89).<br>This thesis describes the design and implementation of an optical-electrical sub-sampling down-conversion receiver that employs [Sigma] [Delta] modulation. Accurate sub-sampling of an electrical RF signal in the optical domain is achieved by using a low-jitter mode-locked-laser and a high-bandwidth interferometer. The sub-sampled information is t

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13

Lum, Randall M. G. "Differential pulse code modulation data compression." Scholarly Commons, 1989. https://scholarlycommons.pacific.edu/uop_etds/2181.

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With the requirement to store and transmit information efficiently, an ever increasing number of uses of data compression techniques have been generated in diverse fields such as television, surveillance, remote sensing, medical processing, office automation, and robotics. Rapid increases in processing capabilities and the speed of complex integrated circuits make data compression techniques a prime candidate for application in the areas mentioned above. This report addresses, from a theoretical viewpoint, three major data compression techniques, Pixel Coding, Predictive Coding, and Transform

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14

Liu, Tao. "Advanced Coded Modulation for High Speed Optical Transmission." Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/613291.

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In the recent years, the exponential Internet traffic growth projections place enormous transmission rate demand on the underlying information infrastructure at every level, from the long haul submarine transmission to optical metro networks. In recent years, optical transmission at 100 Gb/s Ethernet date rate has been standardized by ITU-T and IEEE forums and 400Gb/s and 1Tb/s rates per DWDM channel systems has been under intensive investigation which are expected to be standardized within next couple of years.To facilitate the implementation of 400GbE and 1TbE technologies, the new advanced

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15

Lin, Changyu. "Non-Binary Coded Modulation for FMF-Based Coherent Optical Transport Networks." Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/613281.

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The Internet has fundamentally changed the way of modern communication. Current trends indicate that high-capacity demands are not going to be saturated anytime soon. From Shannon's theory, we know that information capacity is a logarithmic function of signal-to-noise ratio (SNR), but a linear function of the number of dimensions. Ideally, we can increase the capacity by increasing the launch power, however, due to the nonlinear characteristics of silica optical fibers that imposes a constraint on the maximum achievable optical-signal-to-noise ratio (OSNR). So there exists a nonlinear capacity

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16

Fulenwider, Thomas Edward. "Modular Laser Combat System for Remotely Operated Vehicles: Bridging the Gap Between Computer Simulation and Live Fire." DigitalCommons@CalPoly, 2010. https://digitalcommons.calpoly.edu/theses/335.

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In the emerging industry of small unmanned vehicles, pioneered by small businesses and research institutions, a suitable combat system test platform is needed. Computer simulations are useful, but do not provide the definitive proof of effective operation necessary for deployment of a combat system. What is needed is an affordable simulated weapons system that enables live flight testing without the used of live weaponry. A framework is developed here for the construction of a simulated weapon using Free Space Optical (FSO) infrared communication. It is developed in such a way to ensure compat

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17

Chen, Li. "Hybrid Silicon and Lithium Niobate Integrated Photonics." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1429660021.

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18

Maurel, Philippe. "Contribution a l'etude des proprietes physiques des composes ga : :(x)in::(1-x)as::(y)p::(1-y) obtenus par croissance en phase vapeur par la methode des organometalliques." Paris 6, 1987. http://www.theses.fr/1987PA066517.

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Etude des proprietes electriques et optiques a basse temperature dans inp de haute purete. Observation de l'effet hall quantique par etude detaillee de proprietes de transport des porteurs bidimensionnels a l'heterojoncion, a dopage module de type p ou n dans inp/ga::(0,47) in::(0,53) as et inp/ga::(0,25) in::(0,75) as::(0,5) p::(0,5). Etude des proprietes structurelles et optiques des puits quantiques multiples inp/ga::(0,47) in::(0,53) as

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19

Huang, Cheng-Yeh, and 黃政業. "Integrated Spot-Size Converter with Electroabsorption Modulator for improving optical and electrical characteristics." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/6f4w92.

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碩士<br>國立中山大學<br>光電工程研究所<br>95<br>Semiconductor Electroabosortion Modualtor (EAM) has become an important element in optical fiber communications because of its capability to integrate with other semiconductor devices, high-speed and low driving voltage. However, high optical insertion loss and low tolerance in optical power coupling are main general problems to be solved in order to get high electro-optical (EO) efficiency. Monolithically integrating EAM with optical spot-size converter (SSC) can lead to high-efficiency single-mode fiber coupling, but the price is on the complex fabrication me

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20

張承平. "The study electrical and modulated optical properties of Hgl-xZnxTe." Thesis, 1989. http://ndltd.ncl.edu.tw/handle/57743376963889161726.

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21

Vadivukkarasi, Jeyaselvan. "Design and development of high speed optical modulator on silicon-on-insulator platform." Thesis, 2020. https://etd.iisc.ac.in/handle/2005/4445.

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Optical communication has transformed information technology and enabled the present-day data explosion. The new era of data centric society is primarily driven by the ability to communicate data at high-speed. Migration from copper cables to optical fibres has created basic infrastructure for the revolution of optical interconnect. One of the important functionalities in an optical communication network is light modulation that imprints electrical signal information on to an optical carrier. Optical modulators are the devices that do the conversion. Optical modulator changes either the phase

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22

Li, Qi. "Silicon Modulators, Switches and Sub-systems for Optical Interconnect." Thesis, 2016. https://doi.org/10.7916/D8WS8T00.

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Silicon photonics is emerging as a promising platform for manufacturing and integrating photonic devices for light generation, modulation, switching and detection. The compatibility with existing CMOS microelectronic foundries and high index contrast in silicon could enable low cost and high performance photonic systems, which find many applications in optical communication, data center networking and photonic network-on-chip. This thesis first develops and demonstrates several experimental work on high speed silicon modulators and switches with record performance and novel functionality. A 8x

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23

Lakkarsu, Swathi. "Correlation of electrical and optical derivatives in semiconductor lasers using a novel current modulation technique." 2005. http://www.lib.ncsu.edu/theses/available/etd-08132005-015058/unrestricted/etd.pdf.

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24

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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25

Lam, Emily. "Using angle diverse and modulated optical sources for 3D indoor positioning." Thesis, 2020. https://hdl.handle.net/2144/41040.

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Indoor positioning is an enabling technology primed to impact the indoor application space as Global Navigation Satellite Systems (GNSS) did for the outdoor space. Amongst the competing positioning technologies are methods of different mediums: light, radio frequency and ultra-wideband, ultrasonic, and imaging; methods of different modalities: received signal strength, angle-of-arrival, time-of-flight; and methods of different mathematics: trilateration, triangulation, machine learning, and signal processing. Light-based positioning compared to other positioning schemes exploits fixed-locat

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26

Zhu, Xiaoliang. "Systems Engineering for Silicon Photonic Devices." Thesis, 2015. https://doi.org/10.7916/D87D2TRW.

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The increasing integration of digital information with our daily lives has led to the rise of big data, cloud computing, and the internet of things. The growth in these categories will lead to an exponential increase in the required capacity for data centers and high performance computation. Meanwhile, due to bottlenecks in data access caused by the limited energy and bandwidth scalability of electrical interconnects, computational speedup can no longer scale with demand. A better solution is necessary in order to increase computational performance and reduce the carbon footprint of our digita

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27

Safari, Majid. "Relay-Assisted Free-Space Optical Communications." Thesis, 2011. http://hdl.handle.net/10012/5752.

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The atmospheric lightwave propagation is considerably influenced by the random variations in the refractive index of air pockets due to turbulence. This undesired effect significantly degrades the performance of free-space optical (FSO) communication systems. Interestingly, the severity of such random degradations is highly related to the range of atmospheric propagation. In this thesis, we introduce relay-assisted FSO communications as a very promising technique to combat the degradation effects of atmospheric turbulence. Considering different configurations of the relays, we quantify the out

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