Prof. Joel Pedro Carvalho Profile

Prof. Joel Pedro Carvalho

Researcher at INESC TEC

SPIE Involvement:

Author

Area of Expertise:

optical fibre sensors , interrogation systems , microstrutured fibres , gas sensing , sensing heads

Joel Pedro Carvalho was born in 3rd April 1979 in Porto. He currently is a PhD student in Physics, in Faculty of Sciences of the University of Porto. In December 2007 he got his MSc degree in Electrical and Computers Engineering with a Specialization on Optical Communications and Technologies, in the Faculty of Engineer. He works as a researcher in the Optoelectronics and Electronics Unit of INESC Porto since 2002, which is also the year of his graduation in Electrical and Computers Engineering. He worked in the NextGenPCF (next generation photonic crystal fibres) and FIDELIO (Fiber laser development for next generation lidar onboard detection system) European Commission financed projects. Previously he was directly involved in several developments related with the following Portuguese Foundation for Science and Technology financed projects: RUMO (optical fibre laser research for environmental monitoring), OFILTRO (optical filtering for dwdm networks) and WIDCOM (wide band optical fibre amplifier for dense wavelength division multiplexed networks). He is co-author of two patents, 10 papers in international journals and 34 papers in national and international conferences.

Proceedings Article | 2 June 2014 Paper

Fiber optic sensing system for monitoring of coal waste piles in combustion

D. Viveiros, J. Ribeiro, J. Carvalho, J. Ferreira, A. M. Pinto, R. Perez-Herrera, S. Diaz, A. Lopez-Gil, A. Dominguez-Lopez, O. Esteban, H. Martins, S. Martin-Lopez, H. Baierl, J.-L. Auguste, R. Jamier, S. Rougier, J. Santos, D. Flores, P. Roy, M. González-Herráez, M. López-Amo, J. Baptista

Proceedings Volume 9157, 91573O (2014) https://doi.org/10.1117/12.2059640

KEYWORDS: Combustion, Temperature metrology, Fiber optics sensors, Optical fibers, Mining, Gases, Methane, Pollution control, Sensing systems, Environmental sensing

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Proceedings Article | 18 November 2013 Paper

Remote fiber sensors and optical amplification

M. Pontes, Thiago V. Coelho, Joel Carvalho, J. Santos, A. Guerreiro

Proceedings Volume 8785, 8785BZ (2013) https://doi.org/10.1117/12.2026191

KEYWORDS: Sensors, Remote sensing, Raman spectroscopy, Fiber Bragg gratings, Sensing systems, Refractive index, Head, Numerical modeling, Diffraction gratings, Signal attenuation

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Proceedings Article | 9 May 2012 Paper

Remote optical fiber sensor based on an LPG sensor head with Raman amplification optimized by numerical methods

Thiago Nogueira Coelho, Joel Carvalho, M. J. Pontes, J. Santos, A. Guerreiro

Proceedings Volume 8439, 84392A (2012) https://doi.org/10.1117/12.923002

KEYWORDS: Raman spectroscopy, Sensors, Fiber optics sensors, Fiber Bragg gratings, Optical fibers, Optical amplifiers, Head, Temperature metrology, Signal processing, Fiber amplifiers

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Proceedings Article | 9 May 2012 Paper

Optical time-domain reflectometer based multiplexed sensing scheme for environmental sensing

J. Carvalho, C. Gouveia, J. Santos, P. A. Jorge, J. Baptista

Proceedings Volume 8439, 84390B (2012) https://doi.org/10.1117/12.922975

KEYWORDS: Refractive index, Multiplexing, Temperature metrology, Environmental sensing, Reflectometry, Remote sensing, Head, Cladding, Signal detection, Fiber optics sensors

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Proceedings Article | 9 May 2012 Paper

DFB laser based electrical dynamic interrogation for optical fiber sensors

J. Carvalho, O. Frazão, J. Baptista, J. Santos, A. Barbero

Proceedings Volume 8439, 84390K (2012) https://doi.org/10.1117/12.922691

KEYWORDS: Modulation, Refractive index, Multiplexing, Fiber optics sensors, Photodetectors, Fiber lasers, Sensors, Signal detection, Head, Cladding

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Proceedings Article | 26 July 2011 Paper

Modal interferometric sensor based in a birefringent boron-doped microstructured fiber

G. Statkiewicz-Barabach, J. Carvalho, O. Frazão, J. Olszewski, P. Mergo, J. Santos, W. Urbanczyk

Proceedings Volume 8001, 80011K (2011) https://doi.org/10.1117/12.892472

KEYWORDS: Sensors, Interferometers, Temperature metrology, Modulation, Visibility, Interferometry, Micro optical fluidics, Measurement devices, Carbon dioxide lasers, Fiber optics sensors

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Proceedings Article | 26 July 2011 Paper

Interferometric optical fiber inclinometer with dynamic FBG based interrogation

C. R. da Silveira, J. P. Carvalho, P. Jorge, J. W. A. Costa, M. T. R. Giraldi, J. L. Santos, E. L. Carvalho Júnior, D. O. Figueiredo, O. Frazão

Proceedings Volume 8001, 800145 (2011) https://doi.org/10.1117/12.892186

KEYWORDS: Fiber Bragg gratings, Sensors, Visibility, Michelson interferometers, Modulation, Interferometry, Optical fibers, Signal detection, Interferometers, Fusion splicing

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Proceedings Article | 9 September 2010 Paper

Dynamic interrogation of long period gratings with modulated fibre Bragg gratings

J. Carvalho, L. Coelho, L. Correia, O. Frazão, P. A. S. Jorge, J. Baptista, I. Dias, J. Santos, J. Weyl, M. Pontes, M. Martinez, A. Barbero, R. Ribeiro, A. J. G. Abelém, M. T. R. Giraldi

Proceedings Volume 7653, 76532C (2010) https://doi.org/10.1117/12.866444

KEYWORDS: Fiber Bragg gratings, Modulation, Refractive index, Erbium, Head, Optical amplifiers, Raman spectroscopy, Fiber amplifiers, Electronics, Sensors

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Proceedings Article | 9 September 2010 Paper

Fibre optic remote sensing based on long period gratings with in situ optical source

D. Viegas, J. Carvalho, L. Coelho, J. Santos, L. Ferreira, F. Araújo, O. Frazão

Proceedings Volume 7653, 76532F (2010) https://doi.org/10.1117/12.866445

KEYWORDS: Sensors, Fiber Bragg gratings, Remote sensing, Head, Geometrical optics, Optical fibers, Sensing systems, Erbium, Fiber optics, In situ remote sensing

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Proceedings Article | 14 May 2010 Paper

Sensing characteristics of long period gratings and rocking filters based on highly birefringent boron-doped photonic crystal fiber and fabricated by a CO2 laser

J. Carvalho, G. Statkiewicz-Barabach, A. Anuszkiewicz, J. Baptista, O. Frazão, J. Wojcik, J. Santos, W. Urbanczyk

Proceedings Volume 7714, 771403 (2010) https://doi.org/10.1117/12.854805

KEYWORDS: Optical filters, Carbon dioxide lasers, Photonic crystal fibers, Temperature metrology, Cladding, Boron, Refractive index, Signal attenuation, Polarization, Polarizers

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Proceedings Article | 5 October 2009 Paper

Sensing characteristics of hollow-core photonic crystal fibre modal interferometers

S. Aref, R. Amezcua-Correa, J. Carvalho, O. Frazão, P. Caldas, J. Santos, F. Araújo, H. Latifi, F. Farahi, L. Ferreira, J. Knight

Proceedings Volume 7503, 750339 (2009) https://doi.org/10.1117/12.834485

KEYWORDS: Interferometers, Photonic crystal fibers, Interferometry, Sensors, Head, Structured optical fibers, Fusion splicing, Structural sensing, Fermium, Frequency modulation

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Proceedings Article | 2 July 2007 Paper

Evaluation of coupling losses in hollow-core photonic crystal fibres

J. Carvalho, F. Magalhães, O. Ivanov, O. Frazão, F. Araújo, L. Ferreira, J. Santos

Proceedings Volume 6619, 66191V (2007) https://doi.org/10.1117/12.738662

KEYWORDS: Single mode fibers, Photonic crystal fibers, Cladding, Diffusion, Physics, Sensing systems, Optical fibers, Structured optical fibers, Solids, Sensors

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Proceedings Article | 23 May 2005 Paper

Stress profiling of arc-induced long-period gratings written in pure-silica-core fibers

Gaspar Rego, J. Carvalho, P. Marques, Alberto Fernandez Fernandez, F. Duerr, Hans Limberger

Proceedings Volume 5855, (2005) https://doi.org/10.1117/12.624285

KEYWORDS: Optical fibers, Cladding, Gas lasers, Diffusion, Profiling, Tomography, Silica, Annealing, Fabrication, Carbon monoxide

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