Log in

Relevant bibliographies by topics / Coupled waveguides / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Coupled waveguides.

Dissertations / Theses on the topic 'Coupled waveguides'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Coupled waveguides.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Mak, William Chi Keung Electrical Engineering &amp Telecommunications Faculty of Engineering UNSW. "Coupled Solitary Waves in Optical Waveguides." Awarded by:University of New South Wales. Electrical Engineering and Telecommunications, 1998. http://handle.unsw.edu.au/1959.4/17494.

Full text

Abstract:

Soliton states in three coupled optical waveguide systems were studied: two linearly coupled waveguides with quadratic nonlinearity, two linearly coupled waveguides with cubic nonlinearity and Bragg gratings, and a quadratic nonlinear waveguide with resonant gratings, which enable three-wave interaction. The methods adopted to tackle the problems were both analytical and numerical. The analytical method mainly made use of the variational approximation. Since no exact analytical method is available to find solutions for the waveguide systems under study, the variational approach was proved t

APA, Harvard, Vancouver, ISO, and other styles

2

Sangarpaul, Anil Kumar. "Nonlinear coupled-states in optical waveguides." Thesis, University of Salford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308294.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Queraltó, Isach Gerard. "Supersymmetry and topology in coupled optical waveguides." Doctoral thesis, Universitat Autònoma de Barcelona, 2020. http://hdl.handle.net/10803/670742.

Full text

Abstract:

La integració de tots els components bàsics per a la generació, manipulació i detecció de llum en xips òptics està impulsant avenços científics i tecnològics, per exemple, en el desenvolupament de tecnologies de la informació o de dispositius de detecció per a les tecnologies quàntiques. Degut a la seva flexibilitat, escalabilitat i la possibilitat d’observar directament l’evolució de la funció d’ona utilitzant senzilles tècniques de tractament d’imatges, les estructures fotòniques integrades són una plataforma ideal per a la simulació quàntica, és a dir, per emular fenòmens quàntics que apare

APA, Harvard, Vancouver, ISO, and other styles

4

Poon, Joyce Kai See Yariv Amnon. "Active and passive coupled-resonator optical waveguides /." Diss., Pasadena, Calif. : California Institute of Technology, 2007. http://resolver.caltech.edu/CaltechETD:etd-05242007-105741.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Mookherjea, Shayan Yariv Amnon. "Coupled-resonator optical waveguides and multiplexed solitons /." Diss., Pasadena, Calif. : California Institute of Technology, 2003. http://resolver.caltech.edu/CaltechETD:etd-05152003-144457.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Wang, TingTing. "Acoustic / elastic wave propagation in coupled-resonator waveguides." Thesis, Bourgogne Franche-Comté, 2020. http://www.theses.fr/2020UBFCD061.

Full text

Abstract:

Lorsqu'un défaut est introduit dans un cristal phononique, des états apparaissent dans les bandes interdites et se localisent au niveau des défauts. Ils décroissent rapidement loin du défaut. Par conséquent, il est possible de localiser et de guider la propagation des ondes en concevant des défauts dans un cristal phononique parfait. Le guide d’onde à résonateurs couplés, fondé sur le couplage d'une séquence de cavités, présente simultanément un fort confinement des ondes et une faible vitesse de groupe ; il peut être utilisé pour concevoir des circuits plutôt arbitraires. En outre, la propaga

APA, Harvard, Vancouver, ISO, and other styles

7

Ozturk, Mensur. "Analysis Of Circular Waveguides Coupled By Axially Uniform Slots." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607730/index.pdf.

Full text

Abstract:

The characteristics of slotted circular waveguides with different dimensions, including cutoff frequencies of TE and TM modes, impedance and modal field distributions will be analyzed using the generalized spectral domain approach. The Method of Moment will be applied, basis functions that include the edge conditions will be used and a computer program will be developed. Obtained results will be presented for different number, depth and thickness of coupling slots, and compared with available data to demonstrate the accuracy and the efficiency of the approach. Plots of the electric and magneti

APA, Harvard, Vancouver, ISO, and other styles

8

Moore, Kieron R. "Coupled Boussinesq equations and nonlinear waves in layered waveguides." Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/13636.

Full text

Abstract:

There exists substantial applications motivating the study of nonlinear longitudinal wave propagation in layered (or laminated) elastic waveguides, in particular within areas related to non-destructive testing, where there is a demand to understand, reinforce, and improve deformation properties of such structures. It has been shown [76] that long longitudinal waves in such structures can be accurately modelled by coupled regularised Boussinesq (cRB) equations, provided the bonding between layers is sufficiently soft. The work in this thesis firstly examines the initial-value problem (IVP) for

APA, Harvard, Vancouver, ISO, and other styles

9

Doménech, Gómez José David. "Apodized Coupled Resonator Optical Waveguides: Theory, design and characterization." Doctoral thesis, Universitat Politècnica de València, 2013. http://hdl.handle.net/10251/32278.

Full text

Abstract:

In this work we propose the apodization or windowing of the coupling coefficients of the unit cells conforming a coupled resonator device as a mean to reduce the level of secondary sidelobes in the case of SCISSOR configuration [7] or reducing the passband ripples in the case of CROW configuration [8]. This technique is regularly employed in the design of digital filters [18] and has been applied as well in the design of other photonic devices such as corrugated waveguide filters [9] and fiber Bragg gratings [19]. We also propose a novel technique for the apodization of coupled resonator struc

APA, Harvard, Vancouver, ISO, and other styles

10

Luo, Wenyu. "A three-dimensional coupled modes solution for range-dependent waveguides." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/69207.

Full text

Abstract:

Thesis (S.M.)--Joint Program in Oceanography/Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Dept. of Ocean Engineering; and the Woods Hole Oceanographic Institution); and, (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2005.<br>Includes bibliographical references (p. 149-151).<br>Despite the great achievements obtained with fast-field and parabolic equation models, normal mode programs still remain a very efficient, simple and practical tool for describing ocean acoustics in range-independent environments. Num

APA, Harvard, Vancouver, ISO, and other styles

11

Husain, M. N. "Analysis of single and coupled dielectric rib waveguides and discontinuities." Thesis, University of Bath, 1991. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.280252.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Masturzo, Scott A. "Grating and Planar Solid Immersion Mirror Coupled Photonic Crystal Waveguides." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1267131088.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

De, Nobriga Charles. "Linear and nonlinear optics in coupled waveguide arrays." Thesis, University of Bath, 2013. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.589645.

Full text

Abstract:

The following thesis is comprised of four main areas of work. These are centred around the experimental observation of phenomena associated with both linear and non-linear optics in silicon photonic-wires. As a comparison, I also discuss a similar coupled-waveguide system; dual-core hollow-core photonic crystal fibre. To introduce the reader to this work, the first chapter will recap some undergraduate level theory; a general introduction to optical waveguides. It is not intended to be a complete theoretical picture, as many beautiful texts on optics already exist [1–3]. This chapter concerns

APA, Harvard, Vancouver, ISO, and other styles

14

Peall, Robert George. "The effects of strong coupling between waveguides in integrated optics." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.257957.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Dong, Po 1975. "Applications of coupled waveguides in optical integration and nonlinear frequency conversion." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=100349.

Full text

Abstract:

Coupled waveguides, such as directional couplers and grating-assisted directional couplers, have many applications in integrated optics, optical communication and nonlinear optics. In this thesis, we investigate two important applications of them in optical integration and nonlinear frequency conversion. The work presented in this thesis is composed of two main parts. In the first part, we present a compact double-grating coupler between silicon-on-insulator (SOI) waveguides. This type of waveguide coupler has potential applications in multi-layer photonic integrated circuits. In the second pa

APA, Harvard, Vancouver, ISO, and other styles

16

Oukraou, Hassan. "Gradually detuned coupled waveguides for quantum-like robust light transfer and splitting." Thesis, CentraleSupélec, 2018. http://www.theses.fr/2018CSUP0007.

Full text

Abstract:

La propagation d'ondes dans des guides d'ondes couplés peut être décrite par la théorie des modes couplés. Ce formalisme est mathématiquement analogue à l'équation de Schrödinger dans l'approximation des ondes tournantes (RWA) qui décrit la dynamique quantique du transfert de population entre des états atomiques couplés. Ces analogies ont été précédemment étudiées dans des systèmes de guides couplés possédant un indice effectif constant. Ces systèmes sont parfaitement analogues aux systèmes quantiques couplés en résonance. Nous étendons ce type d'études à des systèmes optiques possédant un par

APA, Harvard, Vancouver, ISO, and other styles

17

Liebermeister, Lars Verfasser], and Harald [Akademischer Betreuer] [Weinfurter. "Photonic waveguides evanescently coupled with single NV-centers / Lars Liebermeister. Betreuer: Harald Weinfurter." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2015. http://d-nb.info/1082504939/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Young, P. R. "A study of coupled dielectric waveguides and their application to millimetre-wave components." Thesis, University of Kent, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245653.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Mountfort, Francesca Helen. "A path integral approach to the coupled-mode equations with specific reference to optical waveguides." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/2536.

Full text

Abstract:

MSc<br>Thesis (MSc (Physics))--University of Stellenbosch, 2009.<br>The propagation of electromagnetic radiation in homogeneous or periodically modulated media can be described by the coupled mode equations. The aim of this study was to derive analytical expressions modeling the solutions of the coupled-mode equations, as alternative to the generally used numerical and transfer-matrix methods. The path integral formalism was applied to the coupled-mode equations. This approach involved deriving a path integral from which a generating functional was obtained. From the generating functional

APA, Harvard, Vancouver, ISO, and other styles

20

Schelew, Ellen N. "Nonlinear optical response of triple-mode silicon photonic crystal microcavities coupled to single channel input and output waveguides." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/63353.

Full text

Abstract:

Optical and opto-electronic components play important roles in both classical and quantum information processing technologies. Despite fundamental differences in these technologies, both stand to benefit greatly from moving away from bulky, individually packaged components, toward a scalable platform that supports dense integration of low power consumption devices. Planar photonic circuits, composed of devices etched in a thin slab of high refractive index material, are considered an excellent candidate, and have been used to realize many key components, including low-loss waveguides, light so

APA, Harvard, Vancouver, ISO, and other styles

21

Sanchis, Kilders Pablo. "Coupling techniques between dielectric waveguides and planar photonic crystals." Doctoral thesis, Universitat Politècnica de València, 2008. http://hdl.handle.net/10251/1854.

Full text

Abstract:

El objetivo de esta tesis es la investigación de estructuras y técnicas de acoplo para minimizar las pérdidas de acoplo entre guías dieléctricas y cristales fotónicos planares. En primer lugar se ha estudiado el modelado del acoplo entre guías dieléctricas y guías en cristal fotónico así como la influencia de los principales parámetros del cristal en la eficiencia de acoplo. Se han obtenido expresiones cerradas para las matrices de reflexión y transmisión que caracterizan totalmente el scattering que ocurre en el interfaz formado entre una guía dieléctrica y una guía en cristal fotónico. A con

APA, Harvard, Vancouver, ISO, and other styles

22

Weed, Matthew. "Wavelength scale resonant structures for integrated photonic applications." Doctoral diss., University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5888.

Full text

Abstract:

An approach to integrated frequency-comb filtering is presented, building from a background in photonic crystal cavity design and fabrication. Previous work in the development of quantum information processing devices through integrated photonic crystals consists of photonic band gap engineering and methods of on-chip photon transfer. This work leads directly to research into coupled-resonator optical waveguides which stands as a basis for the primary line of investigation. These coupled cavity systems offer the designer slow light propagation which increases photon lifetime, reduces size limi

APA, Harvard, Vancouver, ISO, and other styles

23

Chang, Cheng-Chun. "Coupled-waveguide Fabry-Perot resonator." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-10062009-020056/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Solano, Vérez Miguel Angel. "Caracterización de discontinuidades entre guías con medios anisótropos." Doctoral thesis, Universidad de Cantabria, 1991. http://hdl.handle.net/10803/22709.

Full text

Abstract:

La tesis estudia cinco formulaciones del método de modos acoplados para analizar guías con medios magnéticos en su interior. La formulación indirecta, de tipo general, se ha aplicado al análisis de desfasadores toroidales obteniéndose resultados similares a los obtenidos mediante un método numérico puro como es el de diferencias finitas. La tesis introduce igualmente una formulación del método de adaptación que junto con el método de modos acoplados permite analizar discontinuidades simples. La combinación de los métodos anteriores con la matriz de dispersión generalizada ha permitido analiza

APA, Harvard, Vancouver, ISO, and other styles

25

Zhang, Yongfang Bridges William B. "Coupled array of CO₂ waveguide lasers /." Diss., Pasadena, Calif. : California Institute of Technology, 1993. http://resolver.caltech.edu/CaltechETD:etd-11212007-125547.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Sterkhova, Anna. "Modelling of Pulse Propagation in Nonlinear Photonic Structures." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-234225.

Full text

Abstract:

V současnosti jsme svědky stále zvyšujících se nároku na rychlost přenosu a zpracování signálu a kapacitu pamet’ových zařízení. Proto se pozornost výzkumných pracovníku zaměřuje k plně optickým zařízením, která by mohla splnit zmíněné požadavky. Jednou z intenzívně zkoumaných možností je využití mikroprstencových optických rezonátoru. Při výzkumu je nutné využít numerických metod, které simulují šíření optického záření v dané struktuře. K tomuto účelu existuje celá rada metod, které se liší v efektivitě výpočtu, použitých aproximacích, i možnostech použití. Cílem této práce bylo vyvinout dvě j

APA, Harvard, Vancouver, ISO, and other styles

27

Svensson, Barbro Christina. "Nonlinear distributed couplers in zinc-sulfide waveguides." Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/184500.

Full text

Abstract:

Nonlinear phenomena originating from the distributed coupling process were observed when distributed couplers, such as prisms and gratings, were used to couple light into nonlinear ZnS thin film waveguides. The efficiency of the nonlinear distributed coupling process was found to depend on two independent parameters, the angle of the incident beam and the power of the incident beam. Depending on the detuning of the incident angle, from the optimum incident angle at low powers, either optical limiting, power-dependent switching, or power-dependent bistability of the coupling efficiency, and the

APA, Harvard, Vancouver, ISO, and other styles

28

Koseki, Shinichi. "Monolithic waveguide coupled GaAs microdisk microcavity containing ingaas quantum dots /." May be available electronically:, 2008. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Lopez-Villarroya, Raul. "E-plane parallel coupled resonators for waveguide bandpass filter applications." Thesis, Heriot-Watt University, 2012. http://hdl.handle.net/10399/2604.

Full text

Abstract:

High skirt selectivity and extended out-of-band rejection is a major challenge for the successful progress of in-line microwave filters. This thesis presents novel filter realizations with improved performance, compatible with the standard single thin all-metal insert in a split-block housing and therefore maintaining the low-cost fabrication characteristics. In addition, significant filter performance improvement is achieved. The synthesis procedure implemented for the filter concept consists of a few steps. Some preliminary steps are a rigorous characterization of a double-ridge coaxial wave

APA, Harvard, Vancouver, ISO, and other styles

30

Neumann, Catharina. "Micro-strip to waveguide transition with integrated coupler." Thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-19027.

Full text

Abstract:

The purpose of this project is to examine a novel approach for coupling RF-power from a transmitter chain in a MiniLink radio. The coupling is achieved by inserting a probe into the microstrip to waveguide transition of the radio.The main purpose of the coupler is to be used for decoupling of output power to an external detector.Today the RF-detector is often placed on the PA chip, this is limiting the number of designs available on the market for HighPower versions of radios. Also an off chip coupler before the waveguide transition will have the drawback of higher insertion loss and also by l

APA, Harvard, Vancouver, ISO, and other styles

31

Molter, Lynne Ann. "Integrated optical multiple waveguide coupler switches and lenses." Thesis, Massachusetts Institute of Technology, 1987. http://hdl.handle.net/1721.1/68228.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

GIBBONS, WAYNE MICHAEL. "ALL-OPTICAL NONLINEAR WAVEGUIDE DEVICES." Diss., The University of Arizona, 1987. http://hdl.handle.net/10150/184212.

Full text

Abstract:

The properties of all-optical nonlinear waveguide devices are investigated. In particular, the nonlinear directional coupler (NLDC) and nonlinear Mach-Zehnder interferometer (NLMZ) are analyzed using perturbation theory. The perturbation theory provides differential equations that describe the amplitude of the waveguide modes as a function of the propagation distance. To be practical, these waveguide devices require nonlinear phase shifts of π or more. Therefore, the theoretical investigation of these devices emphasizes their fabrication in bulk and multiple-quantum-well (MQW) gallium arsenide

APA, Harvard, Vancouver, ISO, and other styles

33

Fong, Chung Yan. "Silicon-based laterally waveguide-coupled square microcavity channel add-drop filters /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?ELEC%202004%20FONG.

Full text

Abstract:

Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2004.<br>Includes bibliographical references (leaves 98-103). Also available in electronic version. Access restricted to campus users.

APA, Harvard, Vancouver, ISO, and other styles

34

Loh, William Ph D. Massachusetts Institute of Technology. "Analysis and characterization of slab-coupled optical waveguide amplifiers and lasers." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/55124.

Full text

Abstract:

Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2009.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 136-140).<br>Semiconductor optical devices are important in the photonics industry due to their significant advantages in size, weight, and power consumption (SWAP) and to their capability for photonic integration. However, these devices traditionally suffer from low fiber coupling efficiency and have been limited to relatively low power applications. This thesis explores the potential of the slab-c

APA, Harvard, Vancouver, ISO, and other styles

35

Fevrier, Mickaël. "Couplage entre un guide d’onde diélectrique et un guide à plasmon de surface localisé : conception, fabrication et caractérisation." Thesis, Paris 11, 2012. http://www.theses.fr/2012PA112040/document.

Full text

Abstract:

Ce travail de thèse présente une étude théorique, numérique et expérimentale de l’intégration sur un guide d’onde diélectrique de chaînes de nanoparticules d’or supportant des résonances « plasmon de surface localisé ». Les guides d’onde à plasmon de surface localisé procurent un confinement sub-longueur d’onde de la lumière, ce qui permet d’envisager la réalisation de composants optiques ultra-compacts. Cependant, leurs pertes optiques élevées restreignent leur application à de courtes distances de propagation, contrairement aux guides d’onde diélectriques. Une combinaison judicieuse des deux

APA, Harvard, Vancouver, ISO, and other styles

36

Montalbo, Trisha M. 1980. "Fiber to waveguide couplers for silicon photonics." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/28881.

Full text

Abstract:

Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2004.<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. 75-78).<br>As silicon photonics enters mainstream technology, we find ourselves in need of methods to seamlessly transfer light between the optical fibers of global scale telecommunications networks and the on-chip waveguides used for signal routing and processing in local computing networks. Connectin

APA, Harvard, Vancouver, ISO, and other styles

37

Lorenz, Lukas, Krzysztof Nieweglowski, Klaus-Jürgen Wolter, and Karlheinz Bock. "Simulation of bended planar waveguides for optical bus-couplers." SPIE, 2016. https://tud.qucosa.de/id/qucosa%3A34834.

Full text

Abstract:

In our work an optical bus-coupler is proposed, which enables easy bidirectional connection between two waveguides without interrupting the bus using a core-to-core coupling principle. With bended waveguides the coupling ratio can be tuned by adjusting the overlap area of the two cores. In order to ensure large overlap areas at short coupling lengths, the waveguides have rectangular cross sections. To examine the feasibility of this coupling concept a simulation was performed, which is presented in this paper. Due to multimode waveguides, used in short range data communication, a non-sequentia

APA, Harvard, Vancouver, ISO, and other styles

38

Ang, Tze Wei. "Optical grating couplers in silicon-on-insulator." Thesis, University of Surrey, 1999. http://epubs.surrey.ac.uk/843726/.

Full text

Abstract:

The aim of this project is to fabricate highly efficient grating couplers in thin-film silicon-on-insulator (SOI) wafers, which have a silicon (Si) thickness of the order of 1 mum. These thin-film waveguides allow the development of higher speed Si optical modulators, sensors and vertical surface coupling for Si light emitting diodes (LEDs), Hence, SOI rectangular and blazed grating couplers were fabricated where the buried oxide layer in SOI was designed as a reflective layer. The former gratings were fabricated by electron beam lithography followed by reactive ion etching, while the latter g

APA, Harvard, Vancouver, ISO, and other styles

39

Berrier, Audrey. "InP-based photonic crystals : Processing, Material properties and Dispersion effects." Doctoral thesis, KTH, Mikroelektronik och tillämpad fysik, MAP, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4734.

Full text

Abstract:

Photonic crystals (PhCs) are periodic dielectric structures that exhibit a photonic bandgap, i.e., a range of wavelength for which light propagation is forbidden. The special band structure related dispersion properties offer a realm of novel functionalities and interesting physical phenomena. PhCs have been manufactured using semiconductors and other material technologies. However, InP-based materials are the main choice for active devices at optical communication wavelengths. This thesis focuses on two-dimensional PhCs in the InP/GaInAsP/InP material system and addresses their fabrication te

APA, Harvard, Vancouver, ISO, and other styles

40

Ng, Wai Keng. "High power performance of InP/InGaAs HBTs and evanescently coupled waveguide phototransistors." Thesis, University of Sheffield, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.419624.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Flores, Angel Steve. "Array Waveguide Evanescent Coupler for Card-to-Backplane Optical Interconnections." Scholarly Repository, 2009. http://scholarlyrepository.miami.edu/oa_dissertations/269.

Full text

Abstract:

Recent advances in computing technology have highlighted deficiencies with electrical interconnections at the motherboard and card-to-backplane levels. The CPU speeds of computing systems are drastically increasing with on-chip local clock speeds expected to approach 6 GHz by 2010. Yet, card-to-backplane communication speeds have been unable to maintain the same pace. At speeds beyond a few gigahertz the implementation of electronic interconnects gets increasingly complex, thus, alternative optical interconnection techniques are being extensively researched to relieve the expected CPU to data

APA, Harvard, Vancouver, ISO, and other styles

42

Daniel, Hani S. "Electro-optic waveguide modulators based on the coaxial directional coupler." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/38277.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Chang, Hosung. "Analysis of linear and nonlinear coupled dielectric waveguides /." 1993. http://hdl.handle.net/1957/16131.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Joushaghani, Arash. "Light Localization in Coupled Optical Waveguides." Thesis, 2011. http://hdl.handle.net/1807/29567.

Full text

Abstract:

This thesis analyzes different light localization phenomena in waveguide arrays. We report on the observation of quasi-Bloch oscillations, a new type of dynamic localization in the spatial evolution of light in curved, coupled optical waveguides. The delocalization and final relocalization of an optical beam in a waveguide array is shown by spatially resolving the optical intensity at various propagation distances. Through comparison to different structures, quasi-Bloch oscillations are shown to be robust beyond the nearest-neighbor tight-binding approximation.

APA, Harvard, Vancouver, ISO, and other styles

45

Mak, William Chi Keung. "Coupled solitary waves in optical waveguides /." 1999. http://www.library.unsw.edu.au/~thesis/adt-NUN/public/adt-NUN20010110.104331/index.html.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Tsai, Ming-Jung, and 蔡明融. "ARROW-Based Coherently Coupled Bending Waveguides." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/96676249692151364994.

Full text

Abstract:

碩士<br>國立交通大學<br>電子工程系所<br>92<br>In this research, we investigate the ARROW-based coherently coupled bending waveguides. The transfer matrix method and effective index method are used to analyze the rib-ARROW structures. The beam propagation method is used to simulate the propagation performance of the ARROW-based bending waveguides. Due to the adjustable characteristics of waveguide width and rib depth, we propose flexible bending devices based on rib-ARROW’s structures. When the total bending angles are designed as 27.2°, 36.8° and 91.2°, respectively, the corresponding waveguide widths are 5

APA, Harvard, Vancouver, ISO, and other styles

47

Mookherjea, Shayan. "Coupled-Resonator Optical Waveguides and Multiplexed Solitons." Thesis, 2003. https://thesis.library.caltech.edu/1813/1/thesis_mookherjea.pdf.

Full text

Abstract:

<p>Whether over micron-long or kilometer-long distances, periodic phenomena can strongly affect both the propagation and the confinement of optical pulses. Periodicities can be engineered through the structural design of optical waveguides, or they may manifest self-consistently from induced nonlinear polarizations. In light of recent developments in fabrication technologies for semiconductor waveguides, polymeric materials, and optical fiber, we show that both strongly- and weakly-nonlinear channels are promising for new devices and systems in optical communications. This thesis proposes and

APA, Harvard, Vancouver, ISO, and other styles

48

Poon, Joyce Kai See. "Active and passive coupled-resonator optical waveguides." Thesis, 2007. https://thesis.library.caltech.edu/2020/1/PoonThesis.pdf.

Full text

Abstract:

Coupled-Resonator Optical Waveguides (CROWs) are chains of resonators in which light propagates by virtue of the coupling between the resonators. The dispersive properties of these waveguides are controllable by the inter-resonator coupling and the geometry of the resonators. If the inter-resonator coupling is weak, light can be engineered to propagate slowly in these structures. The small group velocities possible in CROWs may enable applications in and technologies for optical delay lines, interferometers, buffers, nonlinear optics, and lasers. This thesis reports on achieving and control

APA, Harvard, Vancouver, ISO, and other styles

49

Jiang, Yan Zhong, and 江衍忠. "Analysis of the general broadside-coupled coplanar waveguides." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/54544722246985297759.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Li, Wei-Shuo, and 李唯碩. "Directional Couplers based on Coupled Resonant Optical Waveguides in the Photonic Crystal Slab." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/08911014749678896499.

Full text

Abstract:

碩士<br>國立交通大學<br>光電工程學系<br>99<br>We present an analytical way to study the directional couplers (DCs) based on coupled resonant optical waveguides (CROWs) in the photonic crystal slab (PCS). It holds potential for combining the applications of slow-light propagation, nonlinear optical processes and optical signal coupling in integrated photonic circuits. From the analytical equations derived by the extended tight-binding theory (TBT), we can obtain the dispersion relations and the electromagnetic (EM) mode distribution of a single PCS-CROW and the PCS-DCs. In the dielectric-rod structures, w

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!