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Listar por palabra clave "Optical fibers"

Mostrando ítems 1-19 de 19

Analysis of the strain transfer in a new FBG sensor for Structural Health Monitoring

Torres Górriz, Benjamín; Paya-Zaforteza, I.; Calderón García, Pedro Antonio; Adam Martínez, José Miguel (Elsevier, 2011-02)

Structural Health Monitoring (SHM) is a topic of great interest in structural engineering due to the ageing of the built infrastructures and the growing use of innovative structural systems and construction materials. ...
Bragg Gratings Inscribed in Solid-Core Microstructured Single-Mode Polymer Optical Fiber Drawn From a 3D-Printed Polycarbonate Preform

Zubel, Michal G.; Fasano, Andrea; Woyessa, Getinet Taffesse; Min, Rui; Leal-Junior, Arnaldo Gomes; Theodosiou, Antreas; Marques, Carlos A. F.; Rasmussen, Henrik K.; Bang, Ole; Ortega Tamarit, Beatriz; Kalli, Kyriacos; Frizera-Neto, Anselmo; Pontes, Maria Jose; Sugden, Kate (Institute of Electrical and Electronics Engineers, 2020-11-01)

[EN] This paper reports the first microstructured solid-core fiber drawn from a 3D-printed preform and the first fiber Bragg gratings inscribed in a fiber of this type. The presented fiber is made of polycarbonate and ...
Brillouin-Induced Dynamic Arbitrary Birefringence

Samaniego-Riera, Diego; Zoireff, Gustavo; Vidal Rodriguez, Borja (Institute of Electrical and Electronics Engineers, 2021-04-01)

[EN] A nonlinear method to generate and control both the type and magnitude of the birefringence, as well as differential group delay (DGD) in optical fibers is studied. Experiments show that both parameters of birefringence ...
Broadband optical sources for low-cost WDM-MB-OFDM networks

Chicharro López, Francisco Israel; Ortega Tamarit, Beatriz; Diego Antón, María de; Mora Almerich, José (Institute of Electrical and Electronics Engineers, 2017)

[EN] Multiband OFDM signal transmission through a 10 km optical fiber link is experimentally demonstrated by using a broadband source. We propose the use of optical broadband sources in multiband OFDM signal transmitters ...
Formatos de modulación avanzados para conmunicaciones ópticas de próxima generación

Opaka, Florence Mugeha (Universitat Politècnica de València, 2020-01-02)

[ES] En este trabajo se evaluarán diferentes formatos de modulación para las redes de comunicaciones ópticas de próxima generación. Empleando un software comercial complejo de simulación se realizarán cálculos teóricos en ...
High-Order UWB Pulses Generation Adaptable to Bi-Phase Modulation

Rius Mercado, Manuel; Bolea Boluda, Mario; Mora Almerich, José; Capmany Francoy, José (Institute of Electrical and Electronics Engineers (IEEE), 2016-11-01)

In this letter, we present a high-order impulseradio ultra-wideband (UWB) pulses generator based on the processing of incoherent optical signals by a dispersive element. The full waveform reconfigurability is achieved by ...
OOFDM signal transmission using a single optical broadband source

Chicharro López, Francisco Israel; Ortega Tamarit, Beatriz; Diego Antón, María de; Mora Almerich, José (Institute of Electrical and Electronics Engineers, 2017)

[EN] In this letter, optical OFDM signal transmission is demonstrated by using a broadband optical source over a 10 km fiber link. OFDM signal transmission usually employs lasers to generate the optical carrier since the ...
Optical fiber point sensors based on forward Brillouin scattering

Shemer, Keren; Bashan, Gil; Zehavi, Elad; Diamandi, Hilel Hagai; Bernstein, Alon; Sharma, Kavita; London, Yosef; Barrera Vilar, David; Sales Maicas, Salvador; Bergman, Arik; Zadok, Avi (The Optical Society, 2022-10-24)

[EN] Forward Brillouin scattering interactions support the sensing and analysis of media outside the cladding boundaries of standard fibers, where light cannot reach. Quantitative point-sensing based on this principle has ...
Passive and Portable Polymer Optical Fiber Cleaver

D. Sáez-Rodriguez; Min, Rui; Ortega Tamarit, Beatriz; Nielsen, K.; Webb, D.J. (Institute of Electrical and Electronics Engineers (IEEE), 2016-12-15)

Polymer optical fiber (POF) is a growing technology in short distance telecommunication due to its flexibility, easy connectorization, and lower cost than the mostly deployed silica optical fiber technology. Microstructured ...
Periodic time-domain modulation for the electrically tunable control of optical pulse train envelope and repetition rate multiplication

Tainta, Santiago; Erro Betran, Mª Jose; Amaya Ocampo, Waldimar Alexander; Garde. María José; Sales Maicas, Salvador; Muriel Fernandez, Miguel Angel (Institute of Electrical and Electronics Engineers (IEEE), 2012-01)

An electrically tunable system for the control of optical pulse sequences is proposed and demonstrated. It is based on the use of an electrooptic modulator for periodic phase modulation followed by a dispersive device to ...
Phased Array Antenna Beam-Steering in a Dispersion-Engineered Few-Mode Fiber

Nazemosadat, Elham; Herranz Herruzo, José Ignacio; Gasulla Mestre, Ivana (Institute of Electrical and Electronics Engineers, 2023-11-01)

[EN] We present, for the first time to our knowledge, experimental demonstration of tunable optical beamforming for phased array antennas using a few-mode fiber. The double-clad step-index few-mode fiber is dispersion ...
Reconfigurable Few-Mode Fiber-Based Microwave Photonic Filter

Nazemosadat, Elham; Gasulla Mestre, Ivana (Institute of Electrical and Electronics Engineers, 2022-10-01)

[EN] We experimentally demonstrate, for the first-time to our knowledge, tunable true-time delay line operation over a few-mode fiber link, in which the time delay can be continuously and widely tuned, from 46.3 to 105.6 ...
Remote Photonic THz Generation Using an Optical Frequency Comb and Multicore Fiber

Morant, Maria; González-Guerrero, Luis; Renaud, Cyril C.; Llorente, Roberto (Institute of Electrical and Electronics Engineers, 2021-12-15)

[EN] This paper proposes and demonstrates a photonic THz generation technique based on an optical frequency comb and multicore fiber (MCF) transmission, with the advantage of remote generation with great reconfigurability ...
Simulador de sistemas de comunicaciones ópticas coherentes

Cano Jiménez, Rocío (Universitat Politècnica de València, 2022-10-04)

[ES] El trabajo fin de grado tiene por objeto la puesta en funcionamiento de un simulador de sistemas de comunicaciones coherente basado en Matlab © (u Octave) que permita ejecutar simulaciones de sistemas complejos de ...
Supersymmetric Transformations in Optical Fibers

Macho-Ortiz, Andrés; Llorente, Roberto; García Meca, Carlos (American Physical Society, 2018)

[EN] Supersymmetry (SUSY) has recently emerged as a tool to design unique optical structures with degenerate spectra. Here, we study several fundamental aspects and variants of one-dimensional SUSY in axially symmetric ...
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 ...
Universal Characteristic Equation for Multi-Layer Optical Fibers

García-Cortijo, Sergi; Gasulla Mestre, Ivana (Institute of Electrical and Electronics Engineers, 2020-08)

[EN] Optical fibers featuring multi-layer refractive index profiles have been widely investigated and developed in a variety of scenarios, including space-division multiplexing transmission, fiber sensing, loss and dispersion ...
WDM optical access network for full-duplex and reconfigurable capacity assignement based on Polmux technique

Mora Almerich, José; Ortega Tamarit, Beatriz; Grassi Marangione, Fulvio; Capmany Francoy, José (MDPI, 2014-12)

[EN] We present a novel bidirectional WDM-based optical access network featuring reconfigurable capacity assignment. The architecture relies on the PolMUX technique allowing a compact, flexible, and bandwidth-efficient ...
Weight Measurement and Vibration Detection Sensor Based on a Thermoplastic Polyurethane Optical Fiber

Maldonado-Hurtado, Daniel Gustavo; Llera, Miguel; Flahaut, Frédéric; Benoit, Justin; Barrera Vilar, David (Institute of Electrical and Electronics Engineers, 2024-03-01)

[EN] An elastomeric optical fiber core was fabricated by drawing a 1160-D thermoplastic polyurethane preform. The cut-back technique was used to measure fiber attenuation for a light spectrum ranging from 550 nm to 875 nm, ...