Bibliographies thématiques / Aluminum waveguide

Littérature scientifique sur le sujet « Aluminum waveguide »

Auteur : Grafiati
Publié le 14 mars 2023

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Articles de revues sur le sujet "Aluminum waveguide"

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Alvarado, M. A., M. V. Pelegrini, I. Pereyra, T. A. A. de Assumpção, L. R. P. Kassab et M. I. Alayo. « Fabrication and characterization of aluminum nitride pedestal-type optical waveguide ». Canadian Journal of Physics 92, no 7/8 (juillet 2014) : 951–54. http://dx.doi.org/10.1139/cjp-2013-0587.

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In this paper we present the fabrication and characterization of pedestal-type optical waveguides using aluminum nitride (AlN) as core layer. To the best knowledge of the authors, the utilization of AlN as core layer in pedestal-type waveguides has not been studied. The AlN thin films were obtained by radio frequency reactive magnetron sputtering from a pure aluminum target. The AlN refractive index was determined by ellipsometry. The optical waveguides were fabricated by the pedestal technique, which consists in etching the silicon oxide lower cladding layer before depositing the core layer. Thus, the waveguide geometrical definition is simplified because etching the AlN core is not necessary. AlN thin films of 0.6, 1, and 1.2 μm thick were deposited on thermally grown silicon dioxide using crystalline silicon (100) as substrate. The pedestal profile was defined using conventional photolithography, followed by plasma etching of the cladding layer. Optical propagation losses were measured for pedestal heights of 1 μm and widths from 1 to 100 μm.
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Volkov, S. S., V. M. Nerovnyy et G. A. Bigus. « The Effect of the Material and the Geometric Shape of the Waveguides on the Process of Ultrasonic Welding of Plastics ». Proceedings of Higher Educational Institutions. Маchine Building, no 10 (715) (octobre 2019) : 25–32. http://dx.doi.org/10.18698/0536-1044-2019-10-25-32.

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This article briefly describes basic elements of machines for ultrasonic welding of plastics and the main materials used for manufacturing elements of ultrasonic waveguide oscillatory systems. A relationship between the amplitude of fluctuations of the welded material and a ratio of wave resistance of the product material and the waveguide tool geometry is examined. It is shown that when welding plastic products of a large thickness, it is practical to use waveguides made from aluminum alloys with a working end face with a diameter of 15 mm. It is established that the closer the acoustic characteristics of the waveguide material and the plastic are, the fuller the transfer of ultrasonic energy is when transiting through the interface of the welded polymeric materials. To assess the distribution of amplitudes of fluctuations in the welded material it is more convenient to use a transmission ratio, which decreases with a decrease in the wave resistance. It is established that the sizes of the working end face of the waveguide are most often defined by the properties, dimensions and geometry of the welded product. The application of the developed recommendations to the choice of material and sizes of the working end face of the waveguide can increase technological reliability of the ultrasonic welding process and improve quality of products.
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Hasan, M. Arif, Lazaro Calderin, Trevor Lata, Pierre Lucas, Keith Runge et Pierre A. Deymier. « Directional Elastic Pseudospin and Nonseparability of Directional and Spatial Degrees of Freedom in Parallel Arrays of Coupled Waveguides ». Applied Sciences 10, no 9 (4 mai 2020) : 3202. http://dx.doi.org/10.3390/app10093202.

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We experimentally and numerically investigated elastic waves in parallel arrays of elastically coupled one-dimensional acoustic waveguides composed of aluminum rods coupled along their length with epoxy. The elastic waves in each waveguide take the form of superpositions of states in the space of direction of propagation. The direction of propagation degrees of freedom is analogous to the polarization of a quantum spin; hence, these elastic waves behave as pseudospins. The amplitude in the different rods of a coupled array of waveguides (i.e., the spatial mode of the waveguide array) refer to the spatial degrees of freedom. The elastic waves in a parallel array of coupled waveguides are subsequently represented as tensor products of the elastic pseudospin and spatial degrees of freedom. We demonstrate the existence of elastic waves that are nonseparable linear combinations of tensor products states of pseudospin/ spatial degrees of freedom. These elastic waves are analogous to the so-called Bell states of quantum mechanics. The amplitude coefficients of the nonseparable linear combination of states are complex due to the Lorentzian character of the elastic resonances associated with these waves. By tuning through the amplitudes, we are able to navigate both experimentally and numerically a portion of the Bell state Hilbert space.
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Marayev, Vyacheslav. « Verification of the mathematical model of the induction soldering technological process ». Modern Innovations, Systems and Technologies 2, no 1 (30 mars 2022) : 41–50. http://dx.doi.org/10.47813/2782-2818-2022-2-1-41-50.

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The paper has devoted to the research of the construction and verification of the mathematical model of the process of heating the elements of the thin-walled aluminum waveguide path in the development of the induction soldering technological procedure. The paper has reviewed the method of mathematical modeling of the induction soldering technological process. Comparative research of the induction soldering models of waveguide paths have carried out for their compliance with the real process in permissible limits. Experimental verification of the correctness of the selected mathematical model of the process of the induction soldering is performed. As a result of inventory and model experiments, it has established that the developed mathematical model of induction heating of the assembly elements of thin-wing aluminum waveguide paths of cosmic aircraft with a sufficiently high accuracy simulates this technological process.
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Новиков, И. И., И. А. Няпшаев, А. Г. Гладышев, В. В. Андрюшкин, А. В. Бабичев, Л. Я. Карачинский, Ю. М. Шерняков et al. « Влияние состава волноводного слоя на излучательные параметры лазерных гетероструктур InGaAlAs/InP спектрального диапазона 1550 нм ». Физика и техника полупроводников 56, no 9 (2022) : 933. http://dx.doi.org/10.21883/ftp.2022.09.53418.9892.

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The influence of InGaAlAs waveguide layer composition on the photoluminescence and electroluminescence in the 1550-nm spectral range of heterostructures based on thin strained In0.74Ga0.26As quantum wells has been studied. An approach is proposed that allows based on the analysis of electroluminescence.to carry out a comparative analysis of the deferential gain in fabricated laser diodes. It is shown that decrease of the molar fraction of aluminum in waveguide InGaAlAs layers matched in lattice constant with indium phosphide leads to falling of integrated photoluminescence intensity, however, laser diodes with In0.53Ga0.31Al0.16As waveguide layers demonstrate a higher differential gain compared to laser diodes with In0.53Ga0.27Al0.20As waveguide.
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Elchiev, Javlon D., Muzaffar M. Djalalov et Aleksandr A. Simonov. « The Use of Vacuum Deposition for Fabrication of Optical Amplifying Mediums and Fiber Optic Modules ». Key Engineering Materials 500 (janvier 2012) : 90–93. http://dx.doi.org/10.4028/www.scientific.net/kem.500.90.

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There has shown new vacuum technique of making planar waveguides doped with rare earths, on the basis of simultaneous vacuum deposition of quartz and alloying components. This technology allows to create optical waveguiding layers and amplifying planar compositions on wafers of silicon or quartz, and allows the dose-doping quartz with rare-earth elements, as well as germanium oxide and aluminum oxide, to obtain the optimal composition of a planar waveguide. With the help of lithography formed planar guide mediums with amplifying and modulating properties. There have been researched the methods of production of laboratory models of optical amplifying mediums, using vacuum technology, for the manufacture of planar erbium-doped amplifiers.
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Tynchenko, Vadim, Sergei Kurashkin, Valeriya Tynchenko, Vladimir Bukhtoyarov, Vladislav Kukartsev, Roman Sergienko, Viktor Kukartsev et Kirill Bashmur. « Mathematical Modeling of Induction Heating of Waveguide Path Assemblies during Induction Soldering ». Metals 11, no 5 (24 avril 2021) : 697. http://dx.doi.org/10.3390/met11050697.

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The waveguides used in spacecraft antenna feeders are often assembled using external couplers or flanges subject to further welding or soldering. Making permanent joints by means of induction heating has proven to be the best solution in this context. However, several physical phenomena observed in the heating zone complicate any effort to control the process of making a permanent joint by induction heating; these phenomena include flux evaporation and changes in the emissivity of the material. These processes make it difficult to measure the temperature of the heating zone by means of contactless temperature sensors. Meanwhile, contact sensors are not an option due to the high requirements regarding surface quality. Besides, such sensors take a large amount of time and human involvement to install. Thus, it is a relevant undertaking to develop mathematical models for each waveguide assembly component as well as for the entire waveguide assembly. The proposed mathematical models have been tested by experiments in kind, which have shown a great degree of consistency between model-derived estimates and experimental data. The paper also shows how to use the proposed models to test and calibrate the process of making an aluminum-alloy rectangular tube flange waveguide by induction soldering. The Russian software, SimInTech, was used in this research as the modeling environment. The approach proposed herein can significantly lower the labor and material costs of calibrating and testing the process of the induction soldering of waveguides, whether the goal is to adjust the existing process or to implement a new configuration that uses different dimensions or materials.
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NovikovI.I., Nyapshaev I.A., Gladyshev A. G., Andryushkin V. V., Babichev A. V., Karachinsky L. Ya., Shernyakov Yu. M. et al. « The influence of the waveguide layer composition on the emission parameters of 1550 nm InGaAs/InP laser heterostructures ». Semiconductors 56, no 9 (2022) : 712. http://dx.doi.org/10.21883/sc.2022.09.54140.9892.

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The influence of InGaAlAs waveguide composition on the photoluminescence and electroluminescence of 1550 nm spectral range heterostructures based on thin strained In0.74Ga0.26As quantum wells has been studied. An approach is proposed that allows based on the analysis of electroluminescence to carry out a comparative analysis of the deferential gain in fabricated laser diodes. It is shown that decrease of the molar fraction of aluminum in waveguide InGaAlAs layers matched in lattice constant with InP leads to falling of integrated photoluminescence intensity, however, laser diodes with In0.53Ga0.31Al0.16As waveguide layers demonstrate a higher differential gain compared to laser diodes with In0.53Ga0.27Al0.20As waveguide. Keywords: quantum well, molecular-beam epitaxy, photoluminescence, electroluminescence.
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Krajewski, A., W. Włosiński, T. Chmielewski et P. Kołodziejczak. « Ultrasonic-vibration assisted arc-welding of aluminum alloys ». Bulletin of the Polish Academy of Sciences : Technical Sciences 60, no 4 (1 décembre 2012) : 841–52. http://dx.doi.org/10.2478/v10175-012-0098-2.

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Abstract The structure and hardness of the surface-welds and fusion-welds made on a 2017A aluminum alloy waveguide using the MIG and TIG methods with and without the participation of ultrasonic vibrations were examined. Cross-sections of the fusions and surface-welds thus obtained were observed in a microscope and the hardness distributions were determined. The aim of the study was to analyze the effects of the ultrasonic vibrations applied to the melted metal pool by a vibrating substrate which in our experiments was a waveguide. The interactions of the ultrasonic vibrations with the molten metal during its solidification and also with the heat-affected zone were examined at various phases of the vibration wave. The ultrasonic vibrations affected the structure of a weld. These changes are strongly depended on the wave phase.
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Lu, Shijia, Huangpu Han, Yuhao Wu, Linlin Chen, Yujie Ma, Meng Wang, Bingxi Xiang, Guangyue Chai et Shuangchen Ruan. « Numerical analysis of a single-mode microring resonator on a YAG-on-insulator ». Open Physics 19, no 1 (1 janvier 2021) : 932–40. http://dx.doi.org/10.1515/phys-2021-0107.

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Abstract A numerical analysis of a compact microring resonator that was defined on a yttrium-aluminum-garnet (YAG) thin film bonded on top of a SiO2 cladding layer and operated at the wavelengths of approximately 1.064 and 1.6 μm was performed. The single-mode conditions of YAG waveguides at different waveguide geometries and their propagation losses at different SiO2 cladding layer thicknesses were systematically analyzed. The key design parameters of the microring resonator, such as gap size and ring radius, were simulated based on the 2.5-dimensional variational finite-difference time-domain method. This study could be helpful in understanding the mechanism of microring resonators defined on YAG thin films and fabricating integrated microlaser sources on YAG-on-insulators.
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Thèses sur le sujet "Aluminum waveguide"

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Santamaria, Hernandez Amilcar. « Aluminum Nitride Waveguides for Potential Soliton Propagation ». University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1456848023.

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Harten, Paul Alexander. « Ultrafast phenomena in gallium arsenide/aluminum gallium arsenide multiple quantum well waveguide structures using a near infrared femtosecond laser system ». Diss., The University of Arizona, 1992. http://hdl.handle.net/10150/185954.

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A near infrared hybridly mode-locked dye laser system consisting of a femtosecond oscillator and a high repetition rate dye amplifier was designed and built. This system was then applied to the study of room temperature below-bandgap femtosecond switching and coherent pulse propagation in GaAs/GaAlAs multiple quantum well waveguides. The noise properties of the oscillator output were studied using radio frequency spectrum analysis techniques. Two distinct modes of operation were identified: The first is characterized by the shortest pulse duration and its real-time autocorrelation signal appears more strongly modulated. The second mode of operation, which exhibits a slightly longer pulse duration and a smoother real-time autocorrelation signal, is obtained for a relative cavity length detuning of ΔL = -0.7 μm. Unexpectedly, the second mode features larger pulse duration fluctuations than the first mode and self-pulsing, while the pulse repetition timing and pulse energy fluctuations were found to be similar in both cases, making the first mode preferable for use in time-resolved experiments. Femtosecond all-optical switching under off-resonance room temperature excitation was demonstrated in a passive GaAs/AlGaAs multiple quantum well directional coupler for the first time. The required phase mismatch originates from an ultrafast refractive index change caused by the optical Stark effect. The main obstacle regarding practical device applications is its low transmission (less than 10%). The use of electrically pumped semiconductor waveguides that provide gain promises to remove this disadvantage. Below-resonance, coherent pulse breakup in a room temperature semiconductor waveguide was observed for the first time. Numerical simulations of the coupled semiconductor Maxwell-Bloch equations show that the light-matter interaction can induce enough chirp through self-phase modulation during propagation in order to violate the initial adiabatic following regime and cause pulse breakup. This coherent effect is distinctly different from self-induced transparency, because it does not involve Rabi-oscillations at the start of propagation, from temporal solitons, because it does not require group velocity dispersion, and from self-steepening. However, it should be ubiquitous under off-resonance pulse propagation with a pulse duration less than the polarization dephasing time.
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NICOSIA, CARMELO. « Study and design of hollow core wave guide for LASER beam propagation ». Doctoral thesis, Politecnico di Torino, 2021. http://hdl.handle.net/11583/2872351.

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Samudrala, Pavan Kumar. « Alumina waveguide characterization and SPARROW biosensor modeling ». Morgantown, W. Va. : [West Virginia University Libraries], 2006. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4841.

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Thesis (M.S.)--West Virginia University, 2006.
Title from document title page. Document formatted into pages; contains vii, 85 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 70-72).
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O'Hara, Anthony. « Transmission characteristics of small bore hollow alumina waveguides, rigid and flexible, at 10.6μm ». Thesis, Heriot-Watt University, 1990. http://hdl.handle.net/10399/276.

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LoStracco, Gregory 1960. « Furance and carbon dioxide laser densification of sol-gel derived silicon oxide-titanium oxide-aluminum oxide planar optical waveguides ». Thesis, The University of Arizona, 1994. http://hdl.handle.net/10150/291388.

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An experimental investigation on the furnace and CO₂ laser densification of sol-gel derived SiO₂-TiO₂-Al₂O₃ planar optical waveguides was performed. Solutions containing equal mole fractions of tetraethoxysiline [Si(C₂H₅O)₄], titanium ethoxide [Ti(C₂H₅O)₄], aluminum tri-sec-butoxide [Al(C₄H₉O)₃] were used to spin films with a nominal 2:2:1 molar SiO₂-TiO₂-Al₂O₃ composition. Emphasis was placed on determining what effects the densification techniques had on film shrinkage, index change, crystallization and composition. Film shrinkage and refractive index change were found to be similar for both densification techniques. Fully dense, amorphous film were obtained with both methods. After densification, further heating caused titania crystalline phases to form with both processing techniques. However, anatase formed in the furnace fired films while rutile formed in the laser irradiated films.
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Alvarado, Maria Elisia Armas. « Produção e caracterização de filmes de nitreto de alumínio e sua aplicação em guias de onda tipo pedestal ». Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/3/3140/tde-12072017-085316/.

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O presente trabalho tem como objetivo principal a produção e estudo de filmes de nitreto de alumínio (AlN) depositados por pulverização catódica (sputtering) reativa e a fabricação e caracterização de guias de onda tipo pedestal utilizando o AlN como núcleo. Inicialmente, filmes de AlN foram fabricados por pulverização catódica reativa (sputtering) de rádio frequência (RF) utilizando um alvo de alumínio (Al) com 99,999% de pureza, e nitrogênio (N2) como gás reativo. Subsequentemente, os filmes foram caracterizados mediante as técnicas de elipsometria, difração de raios X (DRX), espectroscopia de absorção por transformada de fourier na região do infravermelho (FTIR) e espectroscopia de absorção na região do ultravioleta e do visível (UV-VIS). Tendo as melhores condições ópticas e físicas para a deposição de filmes de AlN, foram fabricados neste trabalho guias de onda tipo pedestal utilizando estes filmes como núcleo. O guia de onda pedestal traz um processo de fabricação alternativo, em que a geometria do guia de onda determina-se na camada anterior ao do núcleo, assim já não é necessário delinear as paredes laterais da camada de núcleo facilitando desta forma, o processo de fabricação do dispositivo. Os guias de tipo pedestal fabricados neste trabalho foram definidos através da corrosão parcial do óxido de silício (SiO2) mediante a técnica de RIE (Reactive Ion Etching) usando gases trifluorometano (CHF3) e oxigênio (O2) como gases reativos. Uma vez definido o pedestal, um filme de nitreto de alumínio é depositado sobre o SiO2 com a finalidade de constituir o núcleo do guia de onda. O ar foi utilizado como revestimento superior, cujo índice de refração (n = 1) aumenta o confinamento da luz no núcleo e também para poder possibilitar a caracterização das perdas ópticas do dispositivo. Para esta caracterização usamos a técnica de vista superior que permitiu a análises das perdas ópticas de propagação para diferentes alturas de pedestal e diferentes espessuras de núcleo tanto para filmes de AlN orientado no plano cristalino (002) quanto para filmes de AlN amorfos.
The main objective of this work is the production and study of Aluminum Nitride (AlN) films deposited by reactive sputtering and the fabrication and characterization of pedestal optical waveguides using AlN as core. Initially, aluminum nitride films were produced by reactive sputtering using a 99.999% aluminum (Al) purity target, and nitrogen (N2) as the reactive gas. Subsequently, the films were characterized by ellipsometry, X-ray Diffraction, Fourier Transform Infrared Spectroscopy (FTIR) and Ultraviolet-visible spectroscopy (UV-VIS). Once the best optical and physical conditions for the deposition of AlN films were obtained, pedestal waveguides using these films as a nucleus were fabricated in this work. The pedestal waveguide provides an alternative manufacturing process where the geometry of the waveguide is determined in the pre-core layer, so it is no longer necessary to delineate the side walls of the core layer thereby facilitating the device fabrication process. The pedestal waveguides fabricated in this work were defined by the partial corrosion of SiO2 by the RIE (Reactive Ion Etching) technique using CHF3 and O2 gases as reactive gases. Once the pedestal is completed, an aluminum nitride film is deposited onto the SiO2 layer as the waveguide core. The air was used as an upper cladding, whose refractive index (n ? 1) increases the confinement of the light in the core and also allows the optical loss characterization. For this characterization, we used the superior view technique that allowed the analysis of optical propagation losses for different pedestal heights and different core thicknesses for both highly (002) oriented and amorphous AlN films.
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Lafleur, Gaël. « Nouvelles architectures de composants photoniques par l'ingénierie du confinement électrique et optique ». Thesis, Toulouse 3, 2016. http://www.theses.fr/2016TOU30263/document.

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Le confinement électrique et optique par oxydation des couches minces d'AlGaAs est une étape essentielle dans la réalisation des composants photoniques actifs et passifs dans la filière de matériaux GaAs. La recherche de performances ultimes sur ces composants nécessite une meilleure maîtrise du procédé d'oxydation ainsi qu'une meilleure connaissance des propriétés optiques de l'oxyde d'aluminium (AlOx). Dans cette perspective, j'ai d'abord réalisé une étude expérimentale de la vitesse d'oxydation des couches d'AlGaAs en fonction de la température du substrat, de la composition en gallium des couches étudiées, de la pression atmosphérique et de la géométrie des mesas considérés. Puis, j'ai établi un modèle anisotrope permettant une meilleure résolution spatiale et temporelle de la forme du front d'oxydation de l'AlAs. Enfin, j'ai exploité ce procédé pour réaliser des composants d'optique guidée notamment des micro-résonateurs puis réalisé des guides optiques à fente et caractérisé leurs performances optiques
Optical and electrical confinement using Al(Ga)As layer oxidation is a key milestone in the fabrication of active and passive GaAs-based photonic components. To optimize those devices, through the control of the optical and electrical confinements, a better modelling of oxidation process and a better understanding of optical properties of aluminum oxide (AlOx) is required. One part of this work is focusing on a throughout experimental study of AlGaAs oxidation kinetics, where I studied different important parameters such as wafer temperature, gallium composition, atmospheric pressure and mesa geometry. Then, I developed a new predictive model taking into account the process anisotropy, thus allowing a better temporal and spatial of AlAs oxidation front evolution. Finally, I could exploit this technological process to realize whispering gallery mode microdisks as well as slot optical waveguides, and I have characterized this latter photonic devices
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PELENC, DENIS. « Elaboration par epitaxie en phase liquide et caracterisation de couches monocristallines de yag dope : realisation de lasers guide d'onde neodyme et ytterbium a faibles seuils ». Grenoble 1, 1993. http://www.theses.fr/1993GRE10171.

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Dans le cadre des recherches sur des dispositifs laser compacts pouvant etre pompes par diodes, ce memoire decrit le developpement d'une nouvelle technique d'elaboration de lasers guides d'onde, l'epitaxie en phase liquide. Cette technique a ete appliquee a la croissance de couches minces monocristallines de yag dope neodyme et ytterbium sur des substrats de yag non dope. Afin d'obtenir des guides de bonne qualite, nous avons defini les conditions de croissance des couches et montre l'interet de la croissance d'une surcouche de confinement. Deux co-dopages ont ete etudies en supplement a l'ion actif: gallium pour controler l'indice optique des couches, lutetium pour controler leur parametre cristallin. La determination du coefficient de segregation des divers dopants a requis le developpement d'un modele qui prend en compte l'evolution des bains au cours du temps. Nous avons mesure l'augmentation d'indice due a chaque dopant et propose un mecanisme expliquant cette augmentation. La caracterisation spectroscopique des couches a indique que les ions actifs ont les memes proprietes que le materiau massif de meme composition. La caracterisation laser a montre des pertes par propagation tres faibles (environ 0,1 db/cm), comparables a celles du materiau massif. Pour la transition laser a 1064 nm du neodyme, nous avons demontre l'effet laser pour une puissance absorbee au seuil de 700 w et mesure un rendement differentiel de 40% en pompage par diode, pour un seuil de 14 mw. Pour des transitions laser quasi-3 niveaux, une diminution significative du seuil par rapport a une configuration non guidee a ete obtenue: a 946 nm dans un guide dope neodyme, a 1029 nm dans un guide dope ytterbium en pompage par barrette de diode 1w. Un rendement differentiel de 80% a egalement ete mesure dans un guide dope ytterbium emettant a 1048 nm
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Iyer, Rajiv. « Planar Lightwave Circuits Employing Coupled Waveguides in Aluminum Gallium Arsenide ». Thesis, 2008. http://hdl.handle.net/1807/11213.

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This dissertation addresses three research challenges in planar lightwave circuit (PLC) optical signal processing. 1. Dynamic localization, a relatively new class of quantum phenomena, has not been demonstrated in any system to date. To address this challenge, the quantum system was mapped to the optical domain using a set of curved, coupled PLC waveguides in aluminum gallium arsenide (AlGaAs). The devices demonstrated, for the first time, exact dynamic localization in any system. These experiments motivate further mappings of quantum phenomena in the optical domain, leading toward the design of novel optical signal processing devices using these quantum-analog effects. 2. The PLC microresonator promises to reduce PLC device size and increase optical signal processing functionality. Microresonators in a parallel cascaded configuration, called "side coupled integrated spaced sequence of resonators" (SCISSORs), could offer very interesting dispersion compensation abilities, if a sufficient number of rings is present to produce fully formed "Bragg" gaps. To date, a SCISSOR with only three rings has been reported in a high-index material system. In this work, one, two, four and eight-ring SCISSORs were fabricated in AlGaAs. The eight-ring SCISSOR succeeded in producing fully formed Bragg peaks, and offers a platform to study interesting linear and nonlinear phenomena such as dispersion compensators and gap solitons. 3. PLCs are ideal candidates to satisfy the projected performance requirements of future microchip interconnects. In addition to data routing, these PLCs must provide over 100-bit switchable delays operating at ~ 1 Tbit/s. To date, no low loss optical device has met these requirements. To address this challenge, an ultrafast, low loss, switchable optically controllable delay line was fabricated in AlGaAs, capable of delaying 126 bits, with a bit-period of 1.5 ps. This successful demonstrator offers a practical solution for the incorporation of optics with microelectronics systems. The three aforementioned projects all employ, in their unique way, the coupling of light between PLC waveguides in AlGaAs. This central theme is explored in this dissertation in both its two- and multi-waveguide embodiments.
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Livres sur le sujet "Aluminum waveguide"

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C, Papen G., et United States. National Aeronautics and Space Administration., dir. Development of advanced laser diode sources : Final report, NASA NAG 1-1861. [Washington, DC : National Aeronautics and Space Administration, 1998.

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C, Papen G., et United States. National Aeronautics and Space Administration., dir. Development of advanced laser diode sources : Final report, NASA NAG 1-1861. [Washington, DC : National Aeronautics and Space Administration, 1998.

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Wagner, Sean J. The nonlinear optical properties of gallium arsenide/aluminum arsenide superlattice-core waveguides at telecommunications wavelengths. 2006.

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Chapitres de livres sur le sujet "Aluminum waveguide"

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Milov, A. V., V. S. Tynchenko et A. V. Murygin. « Experimental Verification of Flux Effect on Process of Aluminium Waveguide Paths Induction Soldering ». Dans Lecture Notes in Electrical Engineering, 282–91. Cham : Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-39225-3_31.

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Saris, Nur Najahatul Huda, Azura Hamzah, Sumiaty Ambran, Osamu Mikami, Takaaki Ishigure et Toshimi Fukui. « Optical Amplification in Multiple Cores of Europium Aluminium Composite Incorporated Polymer-Based Optical Waveguide Amplifier by Using Mosquito Method ». Dans Lecture Notes in Electrical Engineering, 25–34. Singapore : Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-1289-6_3.

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Actes de conférences sur le sujet "Aluminum waveguide"

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Wang, Wei-Jian, Seppo Honkanen, S. Iraj Najafi et Ari Tervonen. « Comparison of Losses in Glass Waveguides Made by Different Ion-Exchange Processes ». Dans OSA Annual Meeting. Washington, D.C. : Optica Publishing Group, 1993. http://dx.doi.org/10.1364/oam.1993.fq.2.

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The studied waveguides arc 1) one-step aluminum masked silver ion-exchanged waveguide, 2) silver ion-exchanged waveguide made with dielectric mask (ionic masking) and 3) several potassium and silver double-ion-exchanged waveguides made with aluminum mask.
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Singh, Neetesh, Bruno L. Segat Frare, Jonathan D. B. Bradley et Franz X. Kärtner. « Large mode area waveguide for silicon photonics and modelocked lasers ». Dans CLEO : Applications and Technology. Washington, D.C. : Optica Publishing Group, 2022. http://dx.doi.org/10.1364/cleo_at.2022.jth3a.56.

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We show experimental results on large mode area waveguides in silicon photonics. Mode area up to 30 μm2 is demonstrated in a 10 cm long serpentine waveguide with 0.75 dB/cm propagation loss limited only by the aluminum oxide film loss.
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Zhang, Xiangchao, Shaonan Zheng, Qize Zhong, Lianxi Jia, Zhengji Xu, Yuan Dong, Ting Hu et Yuandong Gu. « Aluminum scandium nitride waveguide in the near-infrared ». Dans 13th International Photonics and OptoElectronics Meetings (POEM 2021), sous la direction de Xinliang Zhang, Perry Shum et Jianji Dong. SPIE, 2022. http://dx.doi.org/10.1117/12.2626712.

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Hollenbeck, Michael, Karl Wamick, Clinton Cathey, Janos Opra et Robert Smith. « Selective Laser Melting aluminum waveguide attenuation at K-band ». Dans 2017 IEEE/MTT-S International Microwave Symposium - IMS 2017. IEEE, 2017. http://dx.doi.org/10.1109/mwsym.2017.8058605.

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Sharma, Avinash, Carl Carpenter et Justin Dennison. « Surface roughness effects on additively manufactured aluminum Ka-band waveguide ». Dans 2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting. IEEE, 2020. http://dx.doi.org/10.1109/ieeeconf35879.2020.9329866.

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Tang, Xiao, Yifang Yuan, Kobchat Wongchotigul et Michael G. Spencer. « Optical waveguide formed by aluminum nitride thin film on sapphire ». Dans Photonics China '96, sous la direction de Chung-Sheng Li, Robert L. Stevenson et LiWei Zhou. SPIE, 1996. http://dx.doi.org/10.1117/12.253402.

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Yuan, Yifang, Qiyang Zhu, Baoxue Chen, Changsong Fu et Ping Li. « Thermo-optic dispersion properties of aluminum nitride with an optical waveguide technique ». Dans Asia-Pacific Optical and Wireless Communications 2002, sous la direction de Shuisheng Jian, Steven Shen et Katsunari Okamoto. SPIE, 2002. http://dx.doi.org/10.1117/12.481263.

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Hickstein, Daniel D., Hojoong Jung, David R. Carlson, Alex Lind, Ian Coddington, Kartik Srinivasan, Gabriel Ycas et al. « Aluminum-nitride-waveguide supercontinuum and harmonic generation across 500 to 4000 nm ». Dans CLEO : QELS_Fundamental Science. Washington, D.C. : OSA, 2017. http://dx.doi.org/10.1364/cleo_qels.2017.ftu1d.4.

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Huda Saris, Nur Najahatul, Nur Ameelia Abdul Kadir, Azura Hamzah, Sumiaty Ambran, Osamu Mikami, Toshifumi Horie et Takaaki Ishigure. « Integrated Optics Europium Aluminum Polymer Optical Waveguide with Graded Index Circular Core ». Dans 2020 IEEE 8th International Conference on Photonics (ICP). IEEE, 2020. http://dx.doi.org/10.1109/icp46580.2020.9206465.

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Tombrello, Joseph F., Ramarao Inguva et C. M. Bowden. « Nonlinear Effects of Quantum Confinement Composite Materials in Planar Waveguide Structures ». Dans Nonlinear Optical Properties of Materials. Washington, D.C. : Optica Publishing Group, 1988. http://dx.doi.org/10.1364/nlopm.1988.mf14.

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Waveguide structures which utilize dielectric and quantum confinement nonlinearities in the guide or cladding are currently receiving great attention due to the potential for fast response times and switching1. We consider here the case of planar waveguide structures consisting of alternating layers of Gal-xAlxAs with varying aluminum concentration in a stepwise fashion to form the waveguide and the cladding, but with alternate layers of etched GaAs/Gal-xAlxAs multiple quantum well material as remote cladding. The latter thus form a remote cladding composite material for electronic quantum confinement in GaAs quantum dots. Using a generalization of a method discussed by Walpita2, the effects of the nonlinear cladding on the modes of the waveguide are studied as a function of the thickness of the nonlinear layer, the intensity of the electric field, and the change in the refractive index due to the variation in the aluminum concentration. The effects on the propagation of the electromagnetic field due to the nonlinear cladding are studied under the slowly varying envelope approximation using a variation of the Crank-Nicholson method3 to solve the nonlinear Schroedinger equation. Results will be presented for a model nonlinear (intensity dependent) dielectric constant with absorption.
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