Search Results - "Tovar, Pedro"

A random optical parametric oscillator by Tovar, Pedro, von der Weid, Jean Pierre, Wang, Yuan, Chen, Liang, Bao, Xiaoyi

“…Synchronously pumped optical parametric oscillators (OPOs) provide ultra-fast light pulses at tuneable wavelengths. Their primary drawback is the need for…”
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A mode-locked random laser generating transform-limited optical pulses by von der Weid, Jean Pierre, Correia, Marlon M., Tovar, Pedro, Gomes, Anderson S. L., Margulis, Walter

“…Ever since the mid-1960’s, locking the phases of modes enabled the generation of laser pulses of duration limited only by the uncertainty principle, opening…”
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Distributed phase-matching measurement enabled dynamic temperature–strain discrimination using single chirped pulse probe by Wang, Yuan, Tovar, Pedro, Cotton-Dumouchel, Mathieu, Chen, Liang, Bao, Xiaoyi

“…Distributed optical fiber sensors with the capability of dynamic temperature and strain discrimination can be used for various applications, including…”
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Fiber-Extended Copper Line Architecture With End-to-End Data Transmission and Link Monitoring by Tovar, Pedro, Amaral, Gustavo C., Herrera, Luis E. Y., Trojer, Elmar, Urban, Patryk J., Von Der Weid, Jean Pierre

“…We demonstrate a prototype hybrid, full duplex fiber-extended copper line with frequency-reusability and simultaneous fiber and copper line monitoring. The…”
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The influence of initial geometric imperfections on the buckling load of single and double curvature concrete shells by Tomás, Antonio, Tovar, Juan Pedro

“…► The imperfection sensitivity factor in concrete shells is determined graphically. ► Spherical domes, barrel vaults and double-curvature ruled surfaces are…”
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Representing the Stirling polynomials σn(x) in dependence of n and an application to polynomial zero identities by Kovačec, Alexander, de Tovar Sá, Pedro Barata

“…Denote by the -th Stirling polynomial in the sense of the well-known book Concrete Mathematics by Graham, Knuth and Patashnik. We show that there exist…”
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On the Wavelength-Selective Nature of Rayleigh Backscattering in Single-Mode Fibers by Weid, Jean Pierre von der, Tovar, Pedro, Margulis, Walter

“…Spectral measurements of the Rayleigh backscattered light in a single-mode fiber are performed for a white input source. The measured spectrum of the…”
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Distributed Sensing with Random Fiber Laser by Margulis, Walter, Braga, Pedro Tovar, Correia, Marlon M., Gomes, Anderson S. L., von der Weid, Jean Pierre

“…Random lasers are usually thought of as being light sources of poor coherence and broad spectrum. As such, interference is expected to take place only over…”
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Temperature-Insensitive Tunable Optical Filter Based on a Microsphere-Coupled Off-Core Spliced Fiber by Tatel, Gerard, Tovar, Pedro, D'Aoust, Elyse, Bao, Xiaoyi

“…A low-cost fiber-integrated temperature-insensitive tunable Fabry-Pérot filter fabricated from an off-core spliced segment of standard single mode fiber (SMF)…”
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Distributed birefringence sensing at 10 −9 accuracy over ultra-long PMF by optical frequency comb and distributed Brillouin amplifier by Tovar, Pedro, Wang, Yuan, Chen, Liang, Bao, Xiaoyi

“…Brillouin dynamic gratings (BDG) can measure the distributed birefringence of polarization-maintaining fibers (PMF), however, its sensing range is limited by…”
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Generation of high performance optical chirped pulse for distributed strain sensing application with high strain accuracy and larger measurement range by Wang, Yuan, Tovar, Pedro, Chen, Liang, Bao, Xiaoyi

“…A photonic approach for generating low frequency drifting noise, arbitrary and large frequency chirping rate (FCR) optical pulses based on the Kerr effect in…”
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Longitudinal mode dynamics in SOA-based random feedback fiber lasers by Tovar, Pedro, Temporão, Guilherme, von der Weid, Jean Pierre

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Dynamic Evolution of Narrow Spectral Modes in Stochastic Brillouin Random Fiber Lasers by Tovar, Pedro, von der Weid, Jean Pierre

“…This work reports on the dynamic evolution of narrow linewidth modes in stochastic Brillouin random fiber lasers with ultra-high resolution time-resolved…”
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Pentagrama Didáctico: Una Aproximación Praxiológica de la Gestión del Conocimiento by Caldera Tovar, Pedro Jacobo

“…La presente producción intelectual, tiene como propósito describir el pentagrama didáctico y su aproximación praxiológica de la gestión del conocimiento que…”
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Broadband ultrasound sensing based on fused dual-core chalcogenide-PMMA microfibers by Wang, Haiyang, Baker, Chams, Kelly, Liam, Tovar, Pedro, Chen, Liang, Bao, Xiaoyi

“…High-frequency ultrasound sensors are essential for high-resolution medical ultrasonic imaging and industrial ultrasonic non-destructive monitoring. In this…”
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Modelling Intensity Fluctuations of Rayleigh Backscattered Coherent Light in Single-Mode Fibers by Tovar, Pedro, Lima, Bismarck Costa, von der Weid, Jean Pierre

“…This work reportsa thorough analysis of intensity fluctuations of Rayleigh backscattered coherent light in single mode optical fibers. Based on the…”
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Mode conversion of SH guided waves with symmetry inversion in plates by Kubrusly, Alan C., Tovar, Pedro, von der Weid, Jean Pierre, Dixon, Steve

“…When shear horizontal ultrasonic guided waves interact with thickness discontinuities in plates, the reflected and transmitted wavefields can be composed of…”
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Siembra de Cultivos Organopónicos como Praxis del Docente Centrado en Estrategias de Aprendizajes Motivacionales by Caldera Tovar, Pedro Jacobo

“…El objetivo fundamental de esta investigación es establecer la siembra de cultivos organopónicos como praxis del docente centrado en estrategia de aprendizaje…”
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Full Optical Fiber Link Characterization With the BSS-Lasso by Saavedra, Raphael, Tovar, Pedro, Amaral, Gustavo C., Fanzeres, Bruno

“…In this paper, a novel technique for optical fiber monitoring that introduces the least absolute shrinkage and selection operator (Lasso) as a signal…”
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An opto‐electronic oscillator based on Fabry‐Perot stabilized dual‐wavelength fiber ring laser by Correia, Marlon, Tovar, Pedro, Ribeiro, Ricardo M., von der Weid, Jean Pierre

“…The authors experimentally demonstrate an opto‐electronic oscillator based on a dual‐wavelength fiber ring laser with an inline specially designed…”
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