García Rodríguez, David(Universitat Politècnica de València, 2019-01-21)
[ES] En esta Tesis Doctoral, se propone diferentes técnicas de acoplo y conversión modal destinadas a aumentar la capacidad de transporte en sistemas de telecomunicaciones sobre fibra óptica. En particular, el objetivo ...
[EN] In this letter, we present a scalable high-speed W-band (75-110-GHz) fiber wireless communication system. By using an optical frequency comb generator, three-channel 8.3-Gb/s/ch optical orthogonal frequency-division ...
Vilar Mateo, Ruth; Marques, C.; Nogueira, Regina Isabel; Teixeira, A.; Llorente Sáez, Roberto; Ramos Pascual, Francisco(Institute of Electrical and Electronics Engineers (IEEE), 2011-07-20)
Experimental results on multi-wavelength
conversion based on optical comb generation for optical
switching and multicast applications are presented. All the
newly generated channels showed good performance with
clear ...
In this paper the use of hybrid WiMedia-defined ultra-wideband (UWB) and IEEE 802.16d WiMAX radio-over-fibre is proposed and experimentally demonstrated for multi-mode based in-building optical networks with the advantage ...
Llorente, Roberto; Rodríguez-Hernández, Miguel A.; Hernandez Franco, Carlos Alberto; Sastre, Jorge; CARRIÓN GARCÍA, ALICIA; Madrigal-Madrigal, Javier(IATED Academy, 2020-11-10)
[EN] Higher education, as other social and economic sectors in Spain, was disrupted on 15th March 2020
following health emergency Laws enacted related to COVID-19. Non-presential lecturing was stablished
country-wide until ...
Beltrán Ramírez, Marta; Shi, Y.; Okonkwo, C.; Llorente Sáez, Roberto; Tangdiongga, E .; Koonen, T.(Optical Society of America, 2012)
[EN] The low-cost in-home distribution of full-standard digital TV jointly with high-bitrate data using 50 m long 1 mm core diameter gradedindex plastic optical fiber (GI-POF) is proposed and experimentally demonstrated. ...
Medina Rodríguez, Natán(Universitat Politècnica de València, 2011-09-08)
En este trabajo se investiga la integración de todas las bandas que comprenden los sistemas de banda ultra ancha (UWB, ultra wide band) en redes de acceso óptico de fibra-hasta-el-hogar (FTTH, fiber to the home) compuestas ...
Morant Pérez, María; Llorente Sáez, Roberto; Herrera Llorente, Javier; Alves, Tiago; Cartaxo, Adolfo V T; Herman, Milan(Institute of Electrical and Electronics Engineers (IEEE), 2014-04-15)
[EN] The performance of multi-service provisioning employing orthogonal frequency division multiplexed (OFDM) signals in fiber-to-the-home (FTTH) networks integrating hybrid fiber-coax in-building distribution is evaluated ...
Gonzalez Guerrero, Luis; Morant, Maria; Li, Tongyun; Fice, Martyn J.; Seeds, Alwyn J.; Llorente, Roberto; White, Ian H.; Penty, Richard V.; Renaud, Cyril C.(Institute of Electrical and Electronics Engineers, 2020)
[EN] In this paper we propose multicore fiber (MCF) as the medium to transport the different signals associated with various wireless applications (ranging from access to fronthauling and backhauling) from the baseband ...
Perez, Joaquin; Morant, Maria; Llorente, Roberto; Martí Sendra, Javier(Institute of Electrical and Electronics Engineers, 2009)
[EN] In this paper, the feasibility of the joint distribution of ultra-wideband (UWB) and WIMAX wireless using polarization multiplexing as a coexistence technique is proposed and experimentally demonstrated within the ...
Llorente, Roberto; Morant, María; Puche, José F.; Romme, Jac; Amiot, Nicolas; Uguen, Bernard; Duplicy, Jonathan(Institute of Electrical and Electronics Engineers, 2010-11)
[EN] The fingerprint and localization of radio signals employing a multichannel photonic analog-to-digital converter (ADC) is proposed, analyzed, and demonstrated in a laboratory experiment. The photonic ADC detects the ...
García-Rodríguez, David; Morant, Maria; Corral, Juan L.; Llorente, Roberto(Elsevier, 2019-04-01)
[EN] In this paper, we evaluate experimentally and analyze theoretically and by simulation the demultiplexing of LP01 and LP11 modes in a 850 nm few mode optical link when a standard single-mode coupler theoretically ...
García Rodríguez, David; Corral González, Juan Luis; Llorente Sáez, Roberto(2017)
[EN] A mechanical mode converter for mode division multiplexed systems over SSMF at 850 nm is proposed and evaluated experimentally by the transmission of OOK-modulated optical signals. The proposed mode converter is based ...
Corral, Juan L.; García Rodríguez, David; Llorente Sáez, Roberto(Institute of Electrical and Electronics Engineers (IEEE), 2016-02-15)
The optimal design of a low-loss fused fiber mode-selective coupler for two-mode fiber transmission in the 850-nm band is presented. The coupler is based on precise phase matching of the propagation constants in each arm ...
Morant, Maria; Trinidad, Ailee; Tangdiongga, Eduward; Koonen, Ton; Llorente, Roberto(Institute of Electrical and Electronics Engineers, 2020-10-01)
[EN] This paper presents a multi-beamformer based on a dual-wavelength photonic integrated circuit (PIC) and multicore fiber (MCF) capable of providing independent delay tuning to
two separate beams modulated on different ...
Macho Ortiz, Andrés(Universitat Politècnica de València, 2019-09-02)
[ES] A día de hoy, las redes de comunicaciones de fibra óptica están alcanzando su capacidad límite debido al rápido crecimiento de la demanda de datos en la última década, generado por el auge de los teléfonos inteligentes, ...
[EN] An end-to-end transmission of coexisting multistandard radio (LTE, WiMAX, and UWB) signals is demonstrated for the first time with the transmission over a combined access and in-home networks consisting of 25-km SSMF, ...
Macho-Ortiz, Andrés; Morant Pérez, María; Llorente Sáez, Roberto(Institute of Electrical and Electronics Engineers (IEEE), 2016-10-15)
This paper proposes and investigates the use of multicore fiber (MCF) media performing space-division multiplexed transmission for next-generation optical fronthaul systems. We report the experimental demonstration of ...
The performance of a dual parallel differential Mach Zehnder modulator broadband linearization architecture is analysed. This study provides experimental and analytical results showing an enhancement up to 20 dB in the ...