Prof. Gérard P. Aka Profile

Prof. Gérard P. Aka

at Ecole Nationale Supérieure de Chimie de Paris

SPIE Involvement:

Author

Publications (20)

Proceedings Article | 22 February 2018 Presentation + Paper

Towards large-mode-area fibers fabricated by the full vapor-phase SPCVD process

Alexandre Barnini, Thierry Robin, Daniel Caurant, Thierry Gotter, Gérard Aka, Cédric Guyon, Pascal Guitton, Ronan Montron, Arnaud Laurent, Carine Ranger

Proceedings Volume 10528, 1052814 (2018) https://doi.org/10.1117/12.2290219

KEYWORDS: Optical fibers, Signal attenuation, Plasma, Cerium, Ytterbium, Aluminum, Refractive index, Silica, Chemical analysis, Fiber lasers

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Proceedings Article | 16 February 2017 Presentation + Paper

Rare-earth-doped optical-fiber core deposition using full vapor-phase SPCVD process

A. Barnini, T. Robin, B. Cadier, G. Aka, D. Caurant, T. Gotter, C. Guyon, E. Pinsard, P. Guitton, A. Laurent, R. Montron

Proceedings Volume 10100, 101000D (2017) https://doi.org/10.1117/12.2252448

KEYWORDS: Fiber lasers, Optical fibers, Fiber amplifiers, Ytterbium, Refractive index, Silica, Chemical vapor deposition, Optical amplifiers, Laser optics, Plasma, Fluorine, Aluminum, Doping

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Proceedings Article | 9 July 2013 Paper

Diode pumped neodymium doped ASL (Sr1-xLax-yNdyMgxAl12-xO19) laser

Lihe Zheng, Pascal Loiseau, Gérard Aka

Proceedings Volume 8786, 87860V (2013) https://doi.org/10.1117/12.2020791

KEYWORDS: Crystals, Nonlinear crystals, Semiconductor lasers, Second-harmonic generation, Mirrors, Neodymium, Harmonic generation, Laser crystals, Absorption, Diodes

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Proceedings Article | 9 May 2012 Paper

Spectroscopic properties of newly flux grown RE2O3:Yb3+ (RE=Y,Lu) laser crystals for high-power diode-pumped systems

Gabriel Buse, M. Velázquez, Philippe Veber, Véronique Jubera, Yannick Petit, Stanislav Péchev, Oudomsack Viraphong, Rodolphe Decourt, Anaël Jaffres, Patrick Aschehoug, Gérard Aka

Proceedings Volume 8433, 84331B (2012) https://doi.org/10.1117/12.921785

KEYWORDS: Crystals, Ions, Laser crystals, Single crystal X-ray diffraction, Luminescence, Spectroscopy, Absorption, Near infrared, High power lasers, Laser development

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Proceedings Article | 17 May 2010 Paper

New nonlinear Gd1-xRxCa4O(BO3)3 (R = Lu, Sc) crystals for 400-nm blue-violet light generation by type-I noncritical phase-matching frequency doubling processes

Lucian Gheorghe, Alexandru Achim, Pascal Loiseau, Gerard Aka

Proceedings Volume 7469, 746904 (2010) https://doi.org/10.1117/12.859049

KEYWORDS: Crystals, Second-harmonic generation, Nonlinear crystals, Lutetium, Ions, Laser crystals, Polishing, Optical parametric oscillators, Gadolinium, Birefringence

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Proceedings Article | 5 March 2008 Paper

Diode pumping of Nd:ASL and its frequency doubling for blue emission around 450 nm

David Paboeuf, Gaëlle Lucas-Leclin, Patrick Georges, Bernd Sumpf, Götz Erbert, Cyrille Varona, Pascal Loiseau, Gérard Aka, Bernard Ferrand

Proceedings Volume 6871, 68711P (2008) https://doi.org/10.1117/12.769125

KEYWORDS: Crystals, Laser crystals, Fiber Bragg gratings, Diodes, Optical amplifiers, Second-harmonic generation, Harmonic generation, Absorption, Mirrors, Reflectivity

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Proceedings Article | 9 June 2006 Paper

Spectroscopic bases for optimisation of 900 nm laser emission of Nd³⁺ in strontium lanthanum aluminate

A. Lupei, V. Lupei, C. Gheorghe, L. Gheorghe, E. Antic-Fidancev, G. Aka, D. Vivien

Proceedings Volume 6054, 60540F (2006) https://doi.org/10.1117/12.660692

KEYWORDS: Crystals, Absorption, Neodymium, Ions, Laser crystals, Polarization, Strontium, Spectroscopy, Semiconductor lasers, Lanthanum

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Proceedings Article | 17 April 2006 Paper

Research, growth, and optical properties of new borate-based NLO crystals for generation of visible and UV light

K. Xu, P. Loiseau, G. Aka

Proceedings Volume 6190, 61900H (2006) https://doi.org/10.1117/12.662950

KEYWORDS: Crystals, Ultraviolet radiation, Second-harmonic generation, Refractive index, Nonlinear crystals, Visible radiation, Solid state lasers, X-ray diffraction, Optical properties, Phase matching

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Proceedings Article | 17 April 2006 Paper

CW blue laser emission by second harmonic generation of 900nm oscillation of Nd-doped strontium and lanthanum aluminate (ASL)

C. Varona, P. Loiseau, G. Aka, B. Ferrand, V. Lupei

Proceedings Volume 6190, 61900D (2006) https://doi.org/10.1117/12.662742

KEYWORDS: Crystals, Laser crystals, Strontium, Lanthanum, Nonlinear crystals, Neodymium, Harmonic generation, Polarization, Continuous wave operation, Magnesium

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Proceedings Article | 17 April 2006 Paper

Growth and noncritical phase matching second harmonic generation of Gd_1-xR_xCa₄O(BO₃)₃ (R = Sc or Lu) nonlinear crystals

Lucian Gheorghe, Pascal Loiseau, Gerard Aka, Takunori Taira, Voicu Lupei

Proceedings Volume 6190, 61900Z (2006) https://doi.org/10.1117/12.662596

KEYWORDS: Calcium, Gadolinium, Crystals, Lutetium, Ions, Nonlinear crystals, Refractive index, Harmonic generation, Crystal optics, Phase matching

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Proceedings Article | 17 April 2006 Paper

Investigation of new Nd-doped crystals designed for laser operation at short wavelengths along the ⁴F_3/2→⁴I_9/2 channel around 900 nm

C. Varona, P. Loiseau, G. Aka, B. Ferrand

Proceedings Volume 6190, 619004 (2006) https://doi.org/10.1117/12.662927

KEYWORDS: Crystals, Laser crystals, Neodymium, Ions, Calcium, Strontium, Barium, Absorption, Luminescence, Lanthanum

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