Exploració per tema "Optoelectronics"
Ara es mostren els items 1-20 de 72
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A super frequency-shifter: enhancing the capabilities of acousto-optic modulators
(Universitat Politècnica de Catalunya, 2012-09-06)
Projecte Final de Màster Oficial
Accés obert[ANGLÈS] We put forward a new scheme to enhance the capabilities of currently available acousto-optic frequency shifters (AOFS) by making use of the idea of weak value amplification. The key result of our approach is that ... -
Analysis of a field conjugation adaptive array for coherent free-space optical links
(2010)
Text en actes de congrés
Accés obert -
Atmospheric aerosol measurement with a network of advanced lidar instruments
(2013-03-11)
Article
Accés restringit per política de l'editorialA European network of atmosphere sensors uses multi-wavelength elastic-Raman lidar instruments in its infrastructure. -
Blind adaptation of channel-matched receivers in free-space coherent laser communication
(The Optical Society (OSA), 2012)
Text en actes de congrés
Accés restringit per política de l'editorialChannel-matched adaptive coherent receivers are implemented using aperture arrays. As an alternative to training-based channel estimation, we analyze the performance of sequential techniques for blind adaptation of ... -
Capacity of coherent free-space optical links ¿using diversity-combining techniques: errata
(2010-08-16)
Article
Accés obert -
Caracterización espacial de un microdisplay AMOLED verde
(Red Iberoamericana de Óptica (RIAO), 2019)
Comunicació de congrés
Accés restringit per política de l'editorial -
Characterisation of the Hamamatsu photomultipliers for the KM3NeT Neutrino Telescope
(2018-05-01)
Article
Accés obertThe Hamamatsu R12199-02 3-inch photomultiplier tube is the photodetector chosen for the first phase of the KM3NeT neutrino telescope. About 7000 photomultipliers have been characterised for dark count rate, timing spread ... -
Characterization of a push-pull membrane mirror for an astronomical adaptive-optics system
(Universitat Politècnica de Catalunya, 2012-09-10)
Projecte Final de Màster Oficial
Accés obert[ANGLÈS] Oaxaca Project has the aim to provide the San Pedro Mártir telescope of Adaptive Optics images. Among the elements used in the setup for such aim, there is a Push-Pull deformable membrane mirror. Its introduction ... -
Characterization of two coupled photonic crystal nanocavities
(Universitat Politècnica de Catalunya, 2021-07-06)
Treball Final de Grau
Accés obert
Realitzat a/amb: Centre de Nanosciences et de Nanotechnologies (C2N)Nanolasers are a fundamental piece of all-optical integrated circuits and their several applications. In this work, the nanolaser is a system of two coupled nanocavities in a semiconductor photonic crystal, characterized ... -
Circuits de conversió optoelectrònica per a un bus de control per fibra òptica
(Universitat Politècnica de Catalunya, 2007-07-13)
Projecte/Treball Final de Carrera
Accés restringit per decisió de l'autorEste proyecto forma parte de un sistema Lidar en el cual tenemos la necesidad de enviar unas señales binarias de control para ajustar los valores de ganancia y offset de unos receptores. En un sistema de estas características ... -
Closed-form expressions for the optimization of high speed electro-optical modulators
(2013-07)
Article
Accés restringit per política de l'editorialCompact closed-form mathematical expressions for the propagation parameters (characteristic impedance, effective permittivity and attenuation) of coplanar waveguides (CPW) are presented. The formulas take into account ... -
Concepción, simulación y optimización de dispositivos desplazadores de longitud de onda reflexivos para redes de acceso por fibra óptica (FTTH)
(Universitat Politècnica de Catalunya, 2013-03-01)
Projecte/Treball Final de Carrera
Accés obert[ANGLÊS] This project presents the design, simulation and optimization of reflective wavelength shifters circuits, with the idea of being implemented in the ONU of subscribers within a passive fiber access network (FTTH). ... -
Deep-sea deployment of the KM3NeT neutrino telescope detection units by self-unrolling
(2020-11-19)
Article
Accés obertKM3NeT is a research infrastructure being installed in the deep Mediterranean Sea. It will house a neutrino telescope comprising hundreds of networked moorings—detection units or strings—equipped with optical instrumentation ... -
Design and comparison of flipped active inductors with high quality factors
(Institution of Electrical Engineers, 2014-05-19)
Article
Accés restringit per política de l'editorialA new design based on the flipped-structure for RF active inductors is presented. The conventional flipped-active inductor (FAI) composed of only two transistors is considered as a starting structure. However, it suffers ... -
Design and construction of an operative tabletop lidar imager
(Universitat Politècnica de Catalunya, 2019-09-09)
Projecte Final de Màster Oficial
Accés restringit per acord de confidencialitat -
Designing avionics for lasers & optoelectronics
(Universitat Politècnica de Catalunya, 2022-04-29)
Comunicació de congrés
Accés obertUnlike imagery-based Earth observation (EO) which has become very widely and cheaply available, gravity sensing EO has not yet emerged from its fundamental science roots. The challenge therefore is to develop gravity sensing ... -
Designing Graphene based Silicon Devices
(Universitat Politècnica de Catalunya, 2016-02)
Treball Final de Grau
Accés obertThe objective of the project is the design of new Graphene - Silicon devices for optical communications in future low energy consumption optical networks. For this design it will be used commercial software and MIT designing ... -
Detection of graphene motion through light-matter interactions
(Universitat Politècnica de Catalunya, 2012-09-06)
Projecte Final de Màster Oficial
Accés obert[ANGLÈS] In this thesis, we study both experimentally and theoretically the optical detection of the motion of graphene membranes based on fluorescence quenching of the emitters close to graphene. Fluorescence quenching ... -
Development of a scalable, point-of-care and label free microarray platform for rapid detection of sepsis
(Universitat Politècnica de Catalunya, 2015-06-29)
Treball Final de Grau
Accés restringit per acord de confidencialitat -
Digital coherent receiver for orbital angular momentum demultiplexing
(2013-01-15)
Article
Accés obertWe put forward a type of receiver for coherent detection of the photon orbital angular momentum (OAM). A coherent array receiver, consisting of multiple subapertures, with each subaperture coupled to a single-mode fiber, ...