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Listar por autor "Palací López, Jesús"

Mostrando ítems 1-20 de 24

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All-Fiber Centralized Architecture for Parallel Terahertz Censors

Bockelt, Alexander Stefan; Palací López, Jesús; Vidal Rodriguez, Borja (Institute of Electrical and Electronics Engineers (IEEE), 2015-01)

The use of optical fiber for signal distribution and remote operation of a set of parallel inspection units based on THz time-domain spectroscopy is presented and analyzed. A centralized approach with optical source-sharing ...
All-fiber processing of terahertz-bandwidth signals based on cascaded tapered fibers

Mas Gómez, Sara María; Palací López, Jesús; Pérez Millán, Pedro; Lechago Buendía, Sergio; Monzón-Hernández, D.; Martí Sendra, Javier (Optical Society of America, 2013-12-01)

Tapered single-mode fibers are employed to perform dynamic pulse shaping in a bandwidth of several terahertz. The transfer function of cascaded biconical tapers is controlled by introducing a phase shift into one of them ...
Biconical tapered fibers manipulation for refractive index and strain sensing applications

Mas Gómez, Sara María; Martí Sendra, Javier; Palací López, Jesús (Institute of Electrical and Electronics Engineers (IEEE), 2015-03)

Tapered fibers are used in multitude of applications due to its great versatility and functionality. In particular, this type of fibers is especially useful for sensing applications. For this purpose, tapered fibers must ...
Cascaded Four-Wave Mixing for Microwave Photonic Harmonic Multiplication

Vidal Rodriguez, Borja; Bockelt, Alexander Stefan; Palací López, Jesús (Institute of Electrical and Electronics Engineers (IEEE), 2013-01-01)

Enhanced multiple four-wave mixing (FWM) processes in nonlinear fiber by phase modulation of the pump carrier are investigated for harmonic mixing multiplication of microwave signals. The enhancement of cascaded FWM by ...
Control of terahertz emission in photoconductive antennas through an additional optical continuous wave

Bockelt, A.; Palací López, Jesús; Vidal Rodriguez, Borja (Optical Society of America, 2013-08-15)

The manipulation of the operating conditions of photoconductive antennas by means of an additional continuous wave (CW) is reported. It is used to control a fiber-based terahertz (THz) time-domain-spectroscopy system at ...
Curvature investigation in tapered fibers and its application to sensing and mode conversion

Mas Gómez, Sara María; Martí Sendra, Javier; Palací López, Jesús (Elsevier, 2015-11)

Non-adiabatic tapered fibers are basic photonic components used in a wide range of applications. Here we investigate a way to increase their utility through the controllable bending of one of their tapered sections. The ...
Dispersion tailoring in both integrated photonics and fiber-optic based devices

Mas Gómez, Sara María (Universitat Politècnica de València, 2016-07-21)

[EN] This Thesis focuses on the study, implementation and characterization of chromatic dispersion tailoring employing both optical fiber and photonic integrated waveguides. Chromatic dispersion causes that the different ...
Docencia presencial, on-line o mixta: ¿Qué herramientas pedagógicas son mejor valoradas por el alumnado?

Palací López, Daniel Gonzalo; Palací López, Jesús; Lopez Rodriguez, María Isabel (Editorial Universitat Politècnica de València, 2021-02-08)

[EN] The implementation of the Bologna process in Spanish universities, which has been active for a decade as of this academic year, facilitated the implementation of multiple teaching methodologies where numerous Information ...
Dual-wavelength DFB erbium-doped fiber laser with tunable wavelength spacing

Villanueva Ibáñez, Guillermo Eduardo; Pérez Millán, Pedro; Palací López, Jesús; Cruz, José L.; Andrés, Miguel V.; Martí Sendra, Javier (Institute of Electrical and Electronics Engineers (IEEE), 2010-02-15)

[EN] A novel tunable dual-wavelength distributed-feedback fiber laser is presented. It is based on the optical resonances induced by two local phase shifts introduced in the periodic structure of an erbium-doped fiber Bragg ...
EAM-SOA millimeter-wave frequency up-converter for radio-over-fiber applications

Palací López, Jesús; Villanueva Ibáñez, Guillermo Eduardo; Herrera, J. (Elsevier, 2011-01-01)

[EN] We present an optical scheme for photonic frequency up-conversion at the millimeter-wave bands based on Semiconductor Optical Amplifier. The proposed scheme modulates the bias current with the Intermediate Frequency ...
Evaluación y autoevaluación de los estudiantes mediante la gaminifación y el uso de recursos tecnológicos

Palací López, Daniel Gonzalo; Palací López, Jesús (Editorial Universitat Politècnica de València, 2020-04-10)

[ES] La reestructuración de los contenidos impartidos en las asignaturas que forman los actuales planes de estudio ha dificultado, en buena medida, la forma en que debería enfocarse el proceso de enseñanza-aprendizaje. ...
High frequency microwave signal generation using dual-wavelength emission of cascaded DFB fiber lasers with wavelength spacing tunability

Villanueva Ibáñez, Guillermo Eduardo; Palací López, Jesús; Cruz, José L.; Andrés, Miguel V.; Martí Sendra, Javier; Pérez Millán, Pedro (Elsevier, 2010-12-15)

[EN] A dual wavelength fiber laser source based on two cascaded phase-shifted fiber Bragg gratings is presented The gratings are written in an erbium-doped fiber each configuring the cavity of a distributed feedback fiber ...
Mezclado en frecuencia de señales en la banda de milimétricas mediante una arquitectura EAM-SOA

Palací López, Jesús (Universitat Politècnica de València, 2013-02-19)

[ES] Una de las principales aplicaciones de los sistemas radio sobre fibra se encuentra en la implementación de redes de distribución de señal capaces de proporcionar acceso inalámbrico de banda ancha. Por otra parte, y ...
Optical processing in the microwave and terahertz regions

Palací López, Jesús (Universitat Politècnica de València, 2013-01-15)

El objetivo de la tesis es es procesado de señales en las bandas de microondas y terahercios mediante dispositivos ópticos operando en la banda de comunicaciones. El procesado mediante tecnología convencional presenta una ...
Performance analysis of photonic vector modulation techniques for multi Gb/s wireless links

Sambaraju, Rakesh; Corral González, Juan Luis; Palací López, Jesús; Polo Ramírez, Valentín; Martí Sendra, Javier (Institute of Electrical and Electronics Engineers (IEEE), 2008-07)

Broadband access networks evolution towards 10-Gb/s user connectivity will foster the evolution of the photonic and wireless technologies needed to implement multi-Gb/s wireless links. In particular, provision of data rates ...
Phase and Amplitude Stability of EHF-Band Radar Carriers Generated From an Active Mode-Locked Laser

Serafino, Giovanni; Ghelfi, Paolo; Pérez Millán, Pedro; Villanueva Ibáñez, Guillermo Eduardo; Palací López, Jesús; Cruz, Jose Luis; Bogoni, Antonella (Institute of Electrical and Electronics Engineers (IEEE), 2011)

[EN] We study the phase and amplitude stability of RF signals, generated at different frequencies by heterodyning pairs of modes from the optical spectrum of an active mode-locked laser, and we focus on the dependence of ...
Reconfigurable Photonic Microwave Filter based on Four-Wave Mixing

Vidal Rodriguez, Borja; Palací López, Jesús; Capmany Francoy, José (Institute of Electrical and Electronics Engineers (IEEE), 2012-06)

A simple technique to reshape the response of tapped delay line photonic microwave filters is demonstrated. The technique is based on the generation and control of a set of optical carriers by means of four-wave mixing. ...
Single bandpass photonic microwave filter based on a notch ring resonator

Palací López, Jesús; Villanueva Ibáñez, Guillermo Eduardo; Galán Conejos, José Vicente; Martí Sendra, Javier; Vidal Rodriguez, Borja (Institute of Electrical and Electronics Engineers (IEEE), 2010-09-01)

[EN] A novel tunable single bandpass photonic microwave filter is proposed. It is based on optically filtering one of the sidebands of a phase-modulated optical carrier by means of the notch response of a silicon-on-insulator ...
SOA-based optical processing for terahertz time-domain spectroscopy

Palací López, Jesús; Bockelt, A.; Vidal Rodriguez, Borja (Institution of Engineering and Technology (IET), 2012-05-10)

All-fibre control of a terahertz time-domain spectroscopy system based on photoconductive antennas fed with optical sources in the telecom band is demonstrated. A semiconductor optical amplifier (SOA) is used to obtain ...
Terahertz radiation shaping based on optical spectrum modulation in the time domain

Palací López, Jesús; Bockelt, Alexander Stefan; Vidal Rodriguez, Borja (Optical Society of America, 2012)

A terahertz shaping system based on optical fiber components as opposed to traditional free-space solutions is proposed. It is based on the time-domain modulation of the optical source spectrum. Standard singlemode fiber ...