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Listar por palabra clave "Waveguides"

Mostrando ítems 1-20 de 31

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Accurate chromatic dispersion characterization of photonic integrated circuits

Mas Gómez, Sara María; Matres Abril, Joaquín; Martí Sendra, Javier; Oton Nieto, Claudio José (Institute of Electrical and Electronics Engineers (IEEE), 2012-06)

An accurate technique to characterize chromatic dispersion and its slope versus wavelength is reported. The method is based on a heterodyne Mach-Zehnder interferometer, which is immune to thermal phase noise by using a ...
Agrupación de ranuras transversales en banda Ka para aplicaciones SATCOM en movimiento

Muñoz-Mellado Parra, José Luis (Universitat Politècnica de València, 2023-07-26)

[ES] En este trabajo se realizará el diseño de una antena de tipo "continuous transverse stub array" consistente en un conjunto de ranuras alargadas alimentadas en serie mediante una guía de placas paralelas. Se realizarán ...
All silicon waveguide spherical microcavity coupler device

Xifre Perez, Elisabet; Doménech Gómez, José David; Fenollosa Esteve, Roberto; Muñoz Muñoz, Pascual; Capmany Francoy, José; Meseguer Rico, Francisco Javier (Optical Society of America, 2011)

A coupler based on silicon spherical microcavities coupled to silicon waveguides for telecom wavelengths is presented. The light scattered by the microcavity is detected and analyzed as a function of the wavelength. The ...
Broadband 8 micrometers long hybrid silicon-plasmonic transverse magnetic-transverse electric converter with losses below 2 dB

Sánchez Diana, Luis David; Sanchis Kilders, Pablo (Optical Society of America, 2013-08-01)

A novel ultracompact (8 mu m length) hybrid silicon-plasmonic TM-TE converter is reported. The conversion is achieved during a partial power coupling between a waveguide and a hybrid plasmonic parallel waveguide. The impact ...
Compact focusing grating couplers for silicon horizontal slot waveguides

Larrea-Luzuriaga, Roberto Alejandro; Gutiérrez Campo, Ana María; Hurtado Montañés, Juan; Ramirez, J. M.; Garrido, B.; Sanchis Kilders, Pablo (Optical Society of America, 2017-02-01)

In this Letter, we present the design, simulation (2D and 3D), fabrication, and experimental characterization of compact and fully etched focusing gratings for a horizontal slot waveguide based on a silicon nitride layer ...
Correlation of the refractive index change at the surface and inside phosphate glass upon femtosecond laser irradiation

Puerto Garcia, Daniel; Siegel, Jan; Ferrer, Andres; Hernandez-Rueda, Javier; Solis, Javier (Optical Society of America, 2012-10)

[EN] A study of the surface modification induced by single femtosecond laser pulses in phosphate glass has revealed surface swelling at fluences just below the ablation threshold. This behavior is different from that ...
Design and Characterization of Suspended and Substrate-Based Silicon Photonic Cavity Biosensor

Aguilar Pinto, Lucía (Universitat Politècnica de València, 2024-10-01)

[ES] Una cavidad fotónica es una estructura que confina y controla la luz, permitiendo obtener resonancias a frecuencias específicas. Entre las diferentes formas de crear una cavidad fotónica, se destacan las cavidades de ...
Design and experimental verification of ridge gap waveguide in bed of nails for parallel-plate mode suppression

Kildal, Per-Simon; Zaman, Ashraf Uz; Rajo Iglesias, Eva; Alfonso Alós, Esperanza; Valero-Nogueira, Alejandro (Institution of Engineering and Technology (IET), 2011-02)

This study describes the design and experimental verification of the ridge gap waveguide, appearing in the gap between parallel metal plates. One of the plates has a texture in the form of a wave-guiding metal ridge ...
Design of Multi-feed UWB Antennas using the Theory of Characteristic Modes

Peñafiel Ojeda, Carlos Ramiro (Universitat Politècnica de València, 2021-10-21)

[ES] La Teoría de Modos Característicos (TCM), desarrollada por R.F. Harrington a mediados de los años 60, se ha convertido desde los inicios del siglo XXI, en una herramienta fundamental para el diseño sistemático de ...
Design of single-mode waveguides for enhanced light-sound interaction in honeycomb-lattice silicon slabs

Escalante Fernández, José María; Martínez Abietar, Alejandro José; Laude, Vincent (American Institute of Physics (AIP), 2014-02-14)

We present the design of two waveguides (ladder and slot-ladder waveguides) implemented in a silicon honeycomb photonic-phononic crystal slab, which can support slow electromagnetic and elastic guided modes simultaneously. ...
Dielectric Measurement of Tissues

Zhang, Zixuan (Universitat Politècnica de València, 2021-05-13)

[ES] In this project, the student will need to analyse, design and implement a dielectric measurement software system which can be used to characterise the dielectric properties of single and double layered materials. The ...
Dimensional variation tolerant mode converter/multiplexer fabricated in SOI technology for two-mode transmission at 1550 nm

García-Rodríguez, David; Corral, Juan L.; Griol Barres, Amadeu; Llorente Sáez, Roberto (Optical Society of America, 2017-04-01)

The use of an integrated asymmetrical directional coupler for two-mode transmission at 1550 nm is analyzed. The design is based on silicon-on-insulator (SOI) technology and permits mode conversion and mode multiplexing/d ...
Diseño, simulación y caracterización de una guía de ondas cónica mediante el método de los elementos finitos

Vanderlinden, Matthew Paul (Universitat Politècnica de València, 2024-01-11)

[ES] Una guía de onda es un dispositivo que permite controlar la directividad de un transductor electroacústico de manera proporcional respecto a la frecuencia en su plano vertical. En el plano horizontal se comporta de ...
Distributed Models for Filter Synthesis

Boria Esbert, Vicente Enrique; Soto Pacheco, Pablo; Cogollos Borras, Santiago (Institute of Electrical and Electronics Engineers (IEEE), 2011-10)

The limitations of filter synthesis methods based on classic equivalent circuits with the enhanced distributed models and synthesis procedures able to overcome such limitations are presented. A modified procedure that ...
Filtros y Multiplexores en Guía de Ondas con Respuestas Reconfigurables

Ossorio García, Javier (Universitat Politècnica de València, 2017-05-03)

En aplicaciones espaciales se emplea habitualmente la tecnología basada en guías de onda (de sección transversal tanto rectangular como circular) para implementar filtros con respuesta paso-banda, y multiplexores basados ...
Gap Waveguides using a suspended stripon a bed of nails

Valero-Nogueira, Alejandro; Baquero Escudero, Mariano; Herranz Herruzo, José Ignacio; Doménech Navarro, Javier; Alfonso Alós, Esperanza; Vila Jiménez, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2011)

This letter discusses the feasibility of a new type of waveguide consisting of a strip suspended on a bed of nails. The bed of nails enforces a stopband, while the strip opens a propagating path that can be used to design ...
High-gain receive flat panel antenna for SATCOM in the move in K band

Pla Herliczka, Damián (Universitat Politècnica de València, 2022-10-14)

[ES] Hoy en día, implementar componentes pasivos a altas frecuencias y asegurar un apropiado contacto metálico y alineamiento entre sus piezas es un gran desafío. Las guías de onda son la solución más común y obviar el ...
High-gain transmit flat panel antenna for SATCOM in the move in Ka band

Castellá Montoro, Adrián (Universitat Politècnica de València, 2022-10-14)

[ES] Se diseñará una antena plana de alta ganancia para el segmento transmisor en banda Ka (29-31 GHz) en un sistema de comunicaciones por satélite portable. La tecnología a emplear será la guíaonda conocida como 'groove ...
Method for measuring waveguide propagation losses by means of a Mach-Zehnder Interferometer structure

Gutiérrez Campo, Ana María; Brimont, Antoine Christian Jacques; Aamer, Mariam; Sanchis Kilders, Pablo (Elsevier, 2012-03-15)

In this paper, a method for measuring waveguide propagation losses by means of a Mach-Zehnder Interferometer (MZI) structure is reported. The method, based on the analysis of the transmission spectra of asymmetric MZIs, ...
Multipactor radiation analysis within a waveguide region based on a frequency-domain representation of the dynamics of charged particles

Gimeno, B.; Sorolla, E.; Anza, S.; Vicente, C.; Gil, J.; Pérez, A. M.; Boria Esbert, Vicente Enrique; Pérez, F. J.; Quesada, F.; Álvarez, A.; Raboso, D. (American Physical Society, 2009-04)

[EN] A technique for the accurate computation of the electromagnetic fields radiated by a charged particle moving within a parallel-plate waveguide is presented. Based on a transformation of the time-varying current density ...