Mr. Alvaro J. Almeida Profile

Alvaro J. Almeida

at Instituto de Telecomunicações

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Author

Publications (9)

Proceedings Article | 22 August 2017 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 2014 Paper

Using single photons to improve fiber optic communication systems

Armando Pinto, Nuno Silva, Álvaro Almeida, Nelson Muga

Proceedings Volume 9286, 92861B (2014) https://doi.org/10.1117/12.2063766

KEYWORDS: Photons, Polarization, Single photon, Waveguides, Quantum communications, Telecommunications, Optical fibers, Photon polarization, Signal processing, Signal detection

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Proceedings Article | 22 August 2014 Paper

A brief review on quantum bit commitment

Álvaro Almeida, Ricardo Loura, Nikola Paunković, Nuno Silva, Nelson Muga, Paulo Mateus, Paulo André, Armando Pinto

Proceedings Volume 9286, 92861C (2014) https://doi.org/10.1117/12.2063733

KEYWORDS: Quantum communications, Polarization, Cryptography, Computer security, Quantum memory, Telecommunications, Quantum cryptography, Quantum computing, Quantum information, Photon polarization

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Proceedings Article | 22 August 2014 Paper

Calculation of the number of bits required for the estimation of the bit error ratio

Álvaro Almeida, Nuno Silva, Nelson Muga, Paulo André, Armando Pinto

Proceedings Volume 9286, 928607 (2014) https://doi.org/10.1117/12.2063640

KEYWORDS: Error analysis, Signal to noise ratio, Telecommunications, Neon, Statistical analysis, Signal attenuation, Fiber optic communications, Physics, Electronics, Information science

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Proceedings Article | 18 November 2013 Paper

Enabling quantum communications through accurate photons polarization control

Álvaro Almeida, Nelson Muga, Nuno Silva, Aleksandar Stojanovic, Paulo André, Armando Pinto, José Mora, José Capmany

Proceedings Volume 8785, 8785CG (2013) https://doi.org/10.1117/12.2026208

KEYWORDS: Polarization, Quantum communications, Quantum key distribution, Photons, Wave plates, Computer programming, Polarization control, Sensors, Quantum cryptography, Quantum information

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Proceedings Article | 4 May 2012 Paper

Engineering quantum communication systems

Armando Pinto, Álvaro Almeida, Nuno Silva, Nelson Muga, Luis Martins

Proceedings Volume 8440, 84400B (2012) https://doi.org/10.1117/12.921547

KEYWORDS: Optical fibers, Photons, Polarization, Quantum communications, Quantum key distribution, Control systems, Telecommunications, Single photon, Photon polarization, Wavelength division multiplexing

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Proceedings Article | 26 July 2011 Paper

Optimization of polarization control schemes for QKD systems

Nelson Muga, Álvaro Almeida, Mário F. Ferreira, Armando Pinto

Proceedings Volume 8001, 80013N (2011) https://doi.org/10.1117/12.892221

KEYWORDS: Photons, Polarization control, Polarization, Quantum key distribution, Sensors, Control systems, Time division multiplexing, Wavelength division multiplexing, Systems modeling, Single photon detectors

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Proceedings Article | 26 July 2011 Paper

Single-photon source using stimulated FWM in optical fibers for quantum communication

Álvaro Almeida, Nuno Silva, Nelson Muga, Armando Pinto

Proceedings Volume 8001, 80013W (2011) https://doi.org/10.1117/12.891915

KEYWORDS: Photons, Optical fibers, Polarization, Avalanche photodetectors, Signal processing, Quantum communications, Avalanche photodiodes, Quantum key distribution, Quantum efficiency, Visibility

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Proceedings Article | 26 July 2011 Paper

Optical quantum communications: an experimental approach

Armando Pinto, Álvaro Almeida, Nuno Silva, Nelson Muga, Luís Martins

Proceedings Volume 8001, 80011M (2011) https://doi.org/10.1117/12.892092

KEYWORDS: Photons, Polarization, Quantum communications, Four wave mixing, Quantum cryptography, Optical fibers, Photon polarization, Sensors, Quantum information, Avalanche photodetectors

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Showing 5 of 9 publications

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