Browsing by Subject "Optoelectrònica"
Now showing items 1-20 of 79
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Analysis of a field conjugation adaptive array for coherent free-space optical links
(2010)
Conference report
Open Access -
Atmospheric aerosol measurement with a network of advanced lidar instruments
(2013-03-11)
Article
Restricted access - publisher's policyA 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)
Conference report
Restricted access - publisher's policyChannel-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
Open Access -
Caracterización espacial de un microdisplay AMOLED verde
(Red Iberoamericana de Óptica (RIAO), 2019)
Conference lecture
Restricted access - publisher's policy -
Characterisation of the Hamamatsu photomultipliers for the KM3NeT Neutrino Telescope
(2018-05-01)
Article
Open AccessThe 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)
Master thesis
Open Access[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)
Bachelor thesis
Open Access
Covenantee: 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)
Master thesis (pre-Bologna period)
Restricted access - author's decisionEste 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
Restricted access - publisher's policyCompact 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)
Master thesis (pre-Bologna period)
120 months embargo[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). ... -
Continuous-wave optical parametric oscillators and frequency conversion sources from the ultraviolet to the mid-infrared
(Universitat Politècnica de Catalunya, 2013-10-24)
Doctoral thesis
Open AccessHigh-power, continuous-wave (cw) optical parametric oscillators (OPOs), from the ultraviolet (UV) and visible to the near- and mid-infrared (IR) wavelength range, are of interest for a variety of applications such as ... -
Deep-sea deployment of the KM3NeT neutrino telescope detection units by self-unrolling
(2020-11-19)
Article
Open AccessKM3NeT 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
Restricted access - publisher's policyA 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)
Master thesis
Restricted access - confidentiality agreement -
Design of an integrated coherent receiver with polarization diversity
(Universitat Politècnica de Catalunya, 2014-11-17)
Master thesis
Open Access[ANGLÈS] In this master thesis it has been designed a multimode interference device with great features, great bandwidth and strongly insensitive to hardware impairments. The device implements a 120º hybrid which may be ... -
Designing Graphene based Silicon Devices
(Universitat Politècnica de Catalunya, 2016-02)
Bachelor thesis
Open AccessThe 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)
Master thesis
Open Access[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 ... -
Digital coherent receiver for orbital angular momentum demultiplexing
(2013-01-15)
Article
Open AccessWe 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, ... -
Diseño y caracterización de un aislador monomodo para una longitud de onda infarridia de 1152 mm realizado por técnica de óptica integrada
(Universitat Politècnica de Catalunya, 1988-03-22)
Doctoral thesis
Open AccessEn primer lugar se ha desarrollado toda la teoría necesaria para poder determinar las características de la programación guiada de la radiación electromagnética en el visible e infrarrojo cercano en medios multicapa ...
