Carmen Vazquez

Prof. Dr. Carmen Vazquez

Departamento de Tecnología Electrónica, Universidad Carlos III de Madrid, Leganés, 28911, Madrid, Spain
orcid

Research Focus & Metrics

Academic Career Length

35Years (1992-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 February 2022 in Joule
Verified
Journal Article
Closed access
CACarlos Algora
Carlos Algora
IGIván García
Iván García
MDMarina Delgado
Marina Delgado
RPRafael Peña
Rafael Peña
CVCarmen Vazquez
Carmen Vazquez
IRIgnacio Rey-Stolle
Ignacio Rey-Stolle

1 November 2008 in Solar Energy Materials and Solar Cells
Verified
Journal Article
Closed access
RVRicardo Vergaz
Ricardo Vergaz
JSJosé-Manuel Sánchez-Pena
José-Manuel Sánchez-Pena
David Barrios PuertoDavid Barrios Puerto
David Barrios Puerto
CVCarmen Vazquez
Carmen Vazquez
PLPedro Contreras Lallana
Pedro Contreras Lallana

1 July 2021 in Journal of Lightwave Technology
Verified
Journal Article
Open access
FAFahad Al-Zubaidi
Fahad Al-Zubaidi
JCJ. D. López Cardona
J. D. López Cardona
DMDavid Sánchez Montero
David Sánchez Montero
CVCarmen Vazquez
Carmen Vazquez
We propose using power-over-fiber (PoF) in some part of future 5G cellular solutions based on radio access networks considering currently installed front-haul solutions with single mode fiber to optically power communication systems for 5G new radio (NR) data transmission. Simulations addressing design parameters are presented. Radio-over-fiber (RoF) transmission over single mode fiber (SMF) is experimentally implemented and tested for link lengths ranging from 100 m up to 10 km with injected PoF signals up to 2 W. 64QAM, 16QAM and QPSK data traffic of 100 MHz bandwidth are transmitted simultaneously with the PoF signal showing an EVM compliant with 5G NR standard, and up to 0.5 W for 256QAM. EVM of 4.3% is achieved with RF signal of 20 GHz and QPSK modulation format in coexistence with delivering 870 mW of optical power to a photovoltaic cell (PV) after 10 km-long SMF link. Using PoF technology to optically powering remote units and Internet-of-Things (IoT) solutions based on RoF links is also discussed.

22 November 2017 in Journal of Lightwave Technology
Verified
Journal Article
Open access
JLJuan Dayron López-Cardona
Juan Dayron López-Cardona
CVCarmen Vazquez
Carmen Vazquez
DMDavid Sánchez Montero
David Sánchez Montero
PLPedro Contreras Lallana
Pedro Contreras Lallana
Potential niches for Power-over-Fiber (PoF) technique can be found in hazardous areas that require controlling unauthorized access to risk areas and integration of multiple sensors, in scenarios avoiding electromagnetic interference, and the presence of ignition factors. This paper develops a PoF system that provides galvanic isolation between two ends of a fiber to remotely power a proximity sensor as a proof of concept of the proposed technology. We analyze scalability issues for remotely powering multiple sensors in a specific application for hazardous environment. The maximum number of remote sensors that can be optically powered and the limiting factors are also studied; considering different types of multimode optical fibers, span lengths and wavelengths. We finally address the fiber mode field diameter effect as a factor that limits the maximum power to be injected into the fiber. This analysis shows the advantages of using Step-index versus Graded-index fibers.

26 September 2013 in Sensors
Verified
Journal Article
Open access
PDF file
AMAlberto Tapetado Moraleda
Alberto Tapetado Moraleda
CVCarmen Vazquez
Carmen Vazquez
Joseba Zubia ZaballaJoseba Zubia Zaballa
Joseba Zubia Zaballa
JAJon Arrue
Jon Arrue
The design and development of a plastic optical fiber (POF) macrobend temperature sensor is presented. The sensor has a linear response versus temperature at a fixed bend radius, with a sensitivity of . The sensor system used a dummy fiber-optic sensor for reference purposes having a resolution below 0.3 °C. A comprehensive experimental analysis was carried out to provide insight into the effect of different surrounding media on practical macro-bend POF sensor implementation. Experimental results are successfully compared with bend loss calculations.

1 January 2019 in IEEE Access
Verified
Journal Article
Open access
CVCarmen Vazquez
Carmen Vazquez
JLJuan Dayron López-Cardona
Juan Dayron López-Cardona
PLPedro Contreras Lallana
Pedro Contreras Lallana
DMDavid Sánchez Montero
David Sánchez Montero
FAFahad Mohammed Abdulhussein Al-Zubaidi
Fahad Mohammed Abdulhussein Al-Zubaidi
IGIsabel Pérez Garcilópez
Isabel Pérez Garcilópez