Dr. Amokrane Berdja Profile

Dr. Amokrane Berdja

at Universidad de Antofagasta

SPIE Involvement:

Author

Publications (14)

Proceedings Article | 28 August 2024 Poster + Paper

End-to-end simulation of hierarchical fringe tracking

Fatmé Allouche, Massinissa Hadjara, Amokrane Berdja, Abdelkarim Boskri, James Leftley, Stéphane Lagarde, Romain Petrov

Proceedings Volume 13095, 130952I (2024) https://doi.org/10.1117/12.3020393

KEYWORDS: Telescopes, Device simulation, Design, Sensors, Optical interferometry, Servomechanisms, Adaptive optics, Actuators, Visibility, Signal detection, Long baseline optical interferometry

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Proceedings Article | 28 August 2024 Poster + Paper

Hierarchical fringe tracking

Romain Petrov, Fatmé Allouche, Massinissa Hadjara, Abdelkarim Boskri, James Leftley, Amokrane Berdja, Stéphane Lagarde

Proceedings Volume 13095, 130952H (2024) https://doi.org/10.1117/12.3018417

KEYWORDS: Telescopes, Fourier transforms, Phase measurement, Design, Computer simulations, Visibility, Microelectromechanical systems, Equipment, Device simulation, Long baseline optical interferometry, Astronomical adaptive optics, Active galactic nuclei

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Proceedings Article | 26 August 2022 Paper

VERMILION: Visitor Extension spectRal sub-Mid-Infrared Light InterferOmeter iNstrument

Massinissa Hadjara, Romain Petrov, Stéphane Lagarde, Xinyang Chen, Jinhua He, Lei Zhu, Bruno Lopez, Florentin Millour, Anthony Meilland, Alexandre Gallenne, James Leftley, Abdelkarim Boskri, Juncheng Chen, Ernest Michael, Marcos Diaz, Rene Mendez, Amelia Bayo, Miguel Piña, Gabriel Pereira, Sebastián Manosalva, Christian Nitschelm, Juan Pablo Colque, Congcong Zhang, Dan Zhou, Fatmé Allouche, Yinlei Hao, Amokrane Berdja, Felipe Besser, Clémentine Marie Zélia Bechet, Andrés Guesalaga Meissner, Leonardo Vanzi, Abderrahmane Mezaoui, Nourredine Moussaoui

Proceedings Volume 12183, 121831V (2022) https://doi.org/10.1117/12.2627736

KEYWORDS: Stars, Spectral resolution, Astatine, Telescopes, Sensors, Adaptive optics, Spatial resolution, Observatories, K band, Interferometry

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Proceedings Article | 13 December 2020 Poster + Presentation + Paper

Optomechanical design of PAWS, the Potsdam Arrayed Waveguide Spectrograph

Eloy Hernandez, Andreas Stoll, Svend-Marian Bauer, Amokrane Berdja, Rafael Bernardi, Dani Guzman, Alan Günther, Kalaga Madhav, Martin Roth, Christer Sandin, Constanza Villanueva

Proceedings Volume 11451, 114515O (2020) https://doi.org/10.1117/12.2562174

KEYWORDS: Waveguides, Spectrographs, Single mode fibers, Optical design, Telescopes, Calibration, Microscopes, Free space optics, Integrated photonics, Astronomy

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Proceedings Article | 27 July 2016 Paper

Experimental results on using artificial neural networks for accurate centroiding in Shack-Hartmann wavefront sensors with elongated spots

Amokrane Berdja, Eduardo Garcés Santibañez, Christian Dani Guzmán

Proceedings Volume 9909, 99093Y (2016) https://doi.org/10.1117/12.2233039

KEYWORDS: Wavefront sensors, Artificial neural networks, Adaptive optics, Sodium, Sensors, Neural networks, Optical turbulence, Charge-coupled devices, Stars, Control systems

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Proceedings Article | 28 July 2014 Paper

FIDEOS: a high resolution echelle spectrograph for the ESO 1m telescope at La Silla

Marcelo Tala, A. Berdja, M. Jones, L. Vanzi, S. Ropert, M. Flores, C. Viscasillas

Proceedings Volume 9147, 914789 (2014) https://doi.org/10.1117/12.2056551

KEYWORDS: Spectrographs, Calibration, Telescopes, Lamps, Interfaces, Mirrors, Charge-coupled devices, Lanthanum, Spectral calibration, Spectral resolution

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Proceedings Article | 28 July 2014 Paper

LOTUCE2: a dome-seeing instrument for the E-ELT

Amokrane Berdja, Dani Guzman, Norman Saez, Nicole David, Nicolás Dubost, Marc Sarazin, Aziz Ziad

Proceedings Volume 9147, 91479R (2014) https://doi.org/10.1117/12.2056270

KEYWORDS: Optical turbulence, Charge-coupled devices, Telescopes, Cameras, Turbulence, Mirrors, Domes, Point spread functions, Collimation, Optical design

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Proceedings Article | 18 July 2014 Paper

Using DARC in a multi-object AO bench and in a dome seeing instrument

Norman Sáez, Alistair Basden, Dani Guzmán, Nicolás Dubost, Amokrane Berdja

Proceedings Volume 9152, 91521X (2014) https://doi.org/10.1117/12.2055590

KEYWORDS: Cameras, Adaptive optics, Control systems, Turbulence, Bone, Prototyping, Light emitting diodes, Interfaces, Stars, Software development

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Proceedings Article | 24 September 2012 Paper

An echelle spectrograph for precise radial velocity measurements in the near IR

A. Berdja, L. Vanzi, A. Jordán, S. Koshida

Proceedings Volume 8446, 844681 (2012) https://doi.org/10.1117/12.925572

KEYWORDS: Diffraction gratings, Cameras, Spectrographs, Sensors, Optical design, Velocity measurements, Telescopes, Near infrared, Astronomy, Mirrors

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Proceedings Article | 7 August 2010 Paper

Monitoring of the atmospheric turbulence profiles for the ELTs adaptive optics systems specification

Aziz Ziad, Julien Borgnino, François Martin, Jérôme Maire, Dali-Ali Wassila, Amokrane Berdja, Jean-Baptiste Daban, Yan Fanteï-Caujolle, Marc Sarazin, Andreï Tokovinin

Proceedings Volume 7733, 77334J (2010) https://doi.org/10.1117/12.857259

KEYWORDS: Telescopes, Adaptive optics, Atmospheric turbulence, Observatories, Wavefronts, Atmospheric optics, Algorithms, Global system for mobile communications, Image processing, CCD cameras

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Proceedings Article | 7 August 2010 Paper

Surface layer characterization at Paranal Observatory

G. Lombardi, J. Melnick, R. Hinojosa Goñi, J. Navarrete, M. Sarazin, A. Berdja, A. Tokovinin, R. Wilson, J. Osborn, T. Butterley, H. Shepherd

Proceedings Volume 7733, 77334D (2010) https://doi.org/10.1117/12.856772

KEYWORDS: Turbulence, Stereolithography, Stars, Ultrasonics, Observatories, Telescopes, Temperature metrology, Image quality, Temperature sensors, Physics

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Proceedings Article | 6 August 2010 Paper

Monitoring of the environmental conditions inside the dome of the 4m Blanco Telescope at CTIO

S. Els, T. M. Abbott, E. Bustos, J. Seguel, D. Walker, A. Berdja, R. Riddle, M. Schöck, W. Skidmore, T. Travouillon

Proceedings Volume 7733, 77333X (2010) https://doi.org/10.1117/12.856297

KEYWORDS: Telescopes, Domes, Environmental monitoring, Sensors, Current controlled current source, Ultrasonics, 3D metrology, Charge-coupled devices, Imaging systems, Atmospheric monitoring

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Proceedings Article | 20 July 2010 Paper

MooSci: a lunar scintillometer

S. Villanueva, D. Depoy, J. Marshall, A. Berdja, J. Rheault, G. Prieto, R. Allen, D. Carona

Proceedings Volume 7735, 773547 (2010) https://doi.org/10.1117/12.857413

KEYWORDS: Scintillation, Sensors, Turbulence, Lanthanum, Photodiodes, Astronomy, Telescopes, Interference (communication), Data acquisition, Physics

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Proceedings Article | 6 February 2004 Paper

Simulation of pupil-plane observation of angle-of-arrival fluctuations in daytime turbulence

Amokrane Berdja, Abdenour Irbah, Julien Borgnino, Francois Martin

Proceedings Volume 5237, (2004) https://doi.org/10.1117/12.510997

KEYWORDS: Turbulence, Optical turbulence, Diffraction, Telescopes, Sun, Numerical simulations, Atmospheric turbulence, Space telescopes, Photodiodes, Statistical analysis

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Showing 5 of 14 publications

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