Prof. António L. J. Teixeira Profile

Prof. António L. J. Teixeira

at Picadvanced (PT513275029)

SPIE Involvement:

Author

Publications (21)

Proceedings Article | 22 August 2017 Paper

Paper

Analytical transient analysis of Peltier device for laser thermal tuning

Yahya Sheikhnejad, Zoran Vujicic, Álvaro Almeida, Ricardo Bastos, Ali Shahpari, António Teixeira

Proceedings Volume 10453, 1045332 (2017) https://doi.org/10.1117/12.2276372

KEYWORDS: Tunable diode lasers, Heat flux, Transceivers, Thermoelectric materials, Semiconductor lasers, Data communications, Thermography

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Proceedings Article | 22 August 2017 Paper

Paper

First approach on the Haar Transform applied with a 2 x 2 multimode interferometer

João Fernandes, Francisco Rodrigues, Mário Lima, António Teixeira

Proceedings Volume 10453, 104531M (2017) https://doi.org/10.1117/12.2272146

KEYWORDS: Image compression, Interferometers, Wavelet transforms, Waveguides, Integrated optics, Photonic integrated circuits

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Proceedings Article | 22 August 2017 Paper

Paper

Photonic integrated circuits for NG-EPON

Carla Rodrigues, Francisco Rodrigues, Mário Lima, António Teixeira

Proceedings Volume 10453, 104530Q (2017) https://doi.org/10.1117/12.2271837

KEYWORDS: Photonic integrated circuits, Transceivers, Passive optical networks, Optical components, Integrated optics

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Proceedings Article | 7 February 2015 Paper

Paper

Coherent detection in self-homodyne systems with single and multi-core transmission

Ruben Luís, Benjamin Puttnam, José-Manuel Mendinueta, Ali Shahpari, Zoran Vujičić, Werner Klaus, Jun Sakaguchi, Yoshinari Awaji, Antonio Teixeira, Naoya Wada, Tetsuya Kawanishi, Atsushi Kanno

Proceedings Volume 9389, 93890P (2015) https://doi.org/10.1117/12.2081686

KEYWORDS: Receivers, Signal detection, Digital signal processing, Modulation, Optical amplifiers, Polarization, Modulators, Optical fibers, Signal to noise ratio, Interference (communication)

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Proceedings Article | 22 August 2014 Paper

Paper

Advanced optical modulation and format conversion

Rogerio Dionisio, António Teixeira, Rogério Nogueira

Proceedings Volume 9286, 92861L (2014) https://doi.org/10.1117/12.2060335

KEYWORDS: Modulation, Phase shift keying, Data conversion, Frequency shift keying, Phase modulation, Waveguides, Clocks, Optical networks, Receivers, Amplitude shift keying

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Proceedings Article | 22 August 2014 Paper

Paper

Energy-aware RWA for IP transport over WDM networks

M. Henriques, P. Pinho, A. Teixeira

Proceedings Volume 9286, 92865J (2014) https://doi.org/10.1117/12.2064146

KEYWORDS: Wavelength division multiplexing, Networks, Transponders, Interfaces, Wavelength division multiplexing networks, Optical amplifiers, Network architectures, Optical fibers, Optimization (mathematics), Energy efficiency

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Proceedings Article | 22 August 2014 Paper

Paper

Free space optical communications for ultra high-capacity PON system

Ali Shahpari, Artur Sousa, Ricardo Ferreira, Mário Lima, António Teixeira

Proceedings Volume 9286, 92861Y (2014) https://doi.org/10.1117/12.2063776

KEYWORDS: Free space optics, Orthogonal frequency division multiplexing, Modulation, Receivers, Mirrors, Free space optical communications, Telecommunications, Nyquist pulse, Channel projecting optics, Free space

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Proceedings Article | 22 August 2014 Paper

Paper

Clock and carrier recovery in high-speed coherent optical communication systems

Sofia Amado, Ricardo Ferreira, Pedro Costa, Fernando Guiomar, Somayeh Ziaie, António Teixeira, Nelson Muga, Armando Pinto

Proceedings Volume 9286, 92864M (2014) https://doi.org/10.1117/12.2063761

KEYWORDS: Clocks, Error analysis, Digital signal processing, Phase shift keying, Field programmable gate arrays, Receivers, Telecommunications, Statistical analysis, Optical communications, Signal detection

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Proceedings Article | 22 August 2014 Paper

Paper

Photonic integrated transmitter and receiver for NG-PON2

Ana Tavares, Ana Lopes, Cláudio Rodrigues, Paulo Mãocheia, Tiago Mendes, Simão Brandão, Francisco Rodrigues, Ricardo Ferreira, António Teixeira

Proceedings Volume 9286, 928605 (2014) https://doi.org/10.1117/12.2064174

KEYWORDS: Receivers, Transmitters, Photonic integrated circuits, Laser resonators, Optical amplifiers, Reflectors, Passive optical networks, Optical filters, Video, Integrated optics

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Proceedings Article | 22 August 2014 Paper

Paper

Parametric impairments analysis of all-optical format conversion techniques with a MZI-SOA

Rogerio Dionisio, Rogério Nogueira, António Teixeira

Proceedings Volume 9286, 928627 (2014) https://doi.org/10.1117/12.2061109

KEYWORDS: Signal processing, Quadrature amplitude modulation, Modulation, Phase shift keying, Receivers, Continuous wave operation, Distortion, Phase shifts, Neptunium, Laser beam diagnostics

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Proceedings Article | 3 February 2014 Paper

Paper

A framework for analysis of the upper airway from real-time MRI sequences

Samuel Silva, António Teixeira

Proceedings Volume 9017, 901703 (2014) https://doi.org/10.1117/12.2042081

KEYWORDS: Laser induced plasma spectroscopy, Image segmentation, Visualization, Tongue, Analytical research, Data acquisition, Magnetic resonance imaging, Visual analytics, Image processing, Superposition

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SPIE Journal Paper | 5 November 2013

Optical wireless transmission at 1.6-Tbit/s (16×100 Gbit/s) for next-generation convergent urban infrastructures

Giorgia Parca, Ali Shahpari, Valeria Carrozzo, Giorgio Beleffi, António Teixeira

OE, Vol. 52, Issue 11, 116102, (November 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.11.116102

KEYWORDS: Free space optics, Phase modulation, Multiplexing, Ocean optics, Polarization, Buildings, Receivers, Modulation, GRIN lenses, Optical amplifiers

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Proceedings Article | 5 February 2013 Paper

Paper

Optical transmission modeling by means of Volterra series

António Teixeira, Jacklyn Reis

Proceedings Volume 8647, 86470I (2013) https://doi.org/10.1117/12.2008388

KEYWORDS: Modulation, Scanning probe microscopy, Channel projecting optics, Wavelength division multiplexing, Nonlinear optics, Modulators, Complex systems, Signal detection, Solids, Digital signal processing

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Proceedings Article | 26 July 2011 Paper

Paper

Keeping image processing in the optical domain

G. Parca, M. Svaluto Moreolo, A. Teixeira

Proceedings Volume 8001, 80012C (2011) https://doi.org/10.1117/12.892170

KEYWORDS: Image processing, Video, Video compression, Signal processing, Image compression, Video processing, Wavelets, Optical networks, Data compression, Integrated optics

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Proceedings Article | 3 June 2005 Paper

Paper

Abnormal growth mechanism of fiber Bragg gratings in high-Germanium-doped fibers

M. Lima, R. Nogueira, J. Silva, A. Teixeira, P. Andre, J. da Rocha, H. Kalinowski, J. Pinto

Proceedings Volume 5825, (2005) https://doi.org/10.1117/12.604817

KEYWORDS: Fiber Bragg gratings, Optical communications, Reflectivity, Ultraviolet radiation, Optical sensing, Temperature metrology, Thermal sensing, Optical filters, Sensors, Modulation

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Proceedings Article | 7 February 2005 Paper

Paper

Detailed research of the performance of bidirectionally pumped Raman fiber amplifier

Xiangjun Xin, Chongxiu Yu, Paulo Andre, Antonio Teixeira, Qi Zhang, Anjian Li, Paulo Monteiro

Proceedings Volume 5636, (2005) https://doi.org/10.1117/12.576926

KEYWORDS: Raman spectroscopy, Fiber amplifiers, Optical amplifiers, Radiofrequency ablation, Wavelength division multiplexing, Signal attenuation, Optical fibers, Optical filters, Semiconductor optical amplifiers, Attenuators

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SPIE Journal Paper | 1 September 2003

Comparison of the thermal tuning capability of different types of Bragg grating filters for wavelength division multiplexing applications

Mario Lima, Antonio Teixeira, Jose da Rocha, Orlando Frazao, Paulo Andre

OE, Vol. 42, Issue 09, (September 2003) https://doi.org/10.1117/12.10.1117/1.1593661

KEYWORDS: Fiber Bragg gratings, Wavelength division multiplexing, Temperature metrology, Optical filters, Reflectivity, Hydrogen, Ultraviolet radiation, Telecommunications, Thermal efficiency, Refractive index

Proceedings Article | 8 July 2003 Paper

Paper

Thermal behavior of Bragg gratings formed in germanosilicate fiber

Mario Lima, Antonio Teixeira, Orlando Frazao, Paulo Andre, Jose da Rocha

Proceedings Volume 5036, (2003) https://doi.org/10.1117/12.498362

KEYWORDS: Fiber Bragg gratings, Reflectivity, Refractive index, Modulation, Temperature metrology, Telecommunications, Optical filters, Ultraviolet radiation, Dielectrophoresis, Optical communications

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Proceedings Article | 8 July 2003 Paper

Paper

Multiwavelength conversion based on reflective semiconductor optical amplifiers

Antonio Teixeira, Mario Lima, Paulo Andre, Filipe Oliveira, Jose da Rocha

Proceedings Volume 5036, (2003) https://doi.org/10.1117/12.498633

KEYWORDS: Semiconductor optical amplifiers, Reflectivity, Networks, Polarization, Fiber Bragg gratings, Tunable lasers, Signal attenuation, Code division multiplexing, Telecommunications, Eye

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Proceedings Article | 6 July 1999 Paper

Paper

Optical communication groups at University of Aveiro and Institute of Telecommunications--Aveiro pole

Jose da Rocha, Pedro Tavares, Orlando Frazao, Paulo Monteiro, Paulo Andre, Antonio Teixeira, M. Lima, Armando Pinto, Atilio Gameiro, R. Ribeiro, L. Ribeiro, Antonio Cunha, Joao Pinto, Mario Ferreira, M. Pousa

Proceedings Volume 3572, (1999) https://doi.org/10.1117/12.358435

KEYWORDS: Solitons, Optical filters, Receivers, Clocks, Optical amplifiers, Optical communications, Telecommunications, Modulation, Dispersion, Wavelength division multiplexing

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Proceedings Article | 30 January 1997 Paper

Paper

Behavior between solitons in the presense of a frequency shift

Antonio Teixeira, Jose da Rocha

Proceedings Volume 2918, (1997) https://doi.org/10.1117/12.265374

KEYWORDS: Solitons, Aluminum, Telecommunications, Polarization, Wavelength division multiplexing, Solids, Optical communications, Ions, Receptors, Phase shifts

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Showing 5 of 21 publications

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