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47 results on '"Mennerat, G."'

1. Delivering laser performance conditions to enable fusion ignition, and beyond at the National Ignition Facility

Author

Di Nicola, JM., Suratwala, T., Pelz, L., Heebner, J., Aden, R., Alessi, D., Amula, S., Barnes, A., Bhasker, A., Bond, T., Bude, J., Buckley, B., Browning, D., Cabral, J., CalonicoSoto, A., Carr, W., Chang, L., Chou, J., Cohen, S., Cope, T., Cross, D., Deveno, R., DeVore, P., Deland, A., Nicola, P. Di, Dumbacher, T., Erbert, G., Erickson, M., Erlandson, A., Filip, C., Fratanduono, D., Gottesman, N., Gowda, A., Handler, A., Hernandez, V.J., Herriot, S., Horner, J., House, R., Kalantar, D., Kegelmeyer, L., Kinsella, C., Lanier, T., Larson, D., Galloudec, B. Le, Lusk, J., MacGowan, B., McLaren, S., Manes, K., McCandless, K., Mennerat, G., Miller, C., Monticelli, M., Muir, R., Negres, R., Nelson, J., Nostrand, M., Ordoñez, M., Orth, C., Padilla, E., Pao, A., Penner, J., Petersen, T., Prantil, M., Raman, R., Rana, S., Raymond, B., Ruiz, N., Sacks, R., Schrauth, S., Shaw, M., Sommer, S., Siegel, L., Spaeth, M., Stolz, C., Tam, M.F., Tate, T., Trummer, S., VanBlarcom, D., Varadan, K., Vella, A., Wargo, A., Wang, L., Waxer, L., Wegner, P., Welday, B., Whitman, P., Widmayer, C., Williams, W., Wong, L., Wong, N., Van Wonterghem, B., Yang, S., and Brunton, G.

Published
2024
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2. Survey of spatio-temporal couplings throughout high-power ultrashort lasers

Author

Jeandet, A., Jolly, S. W., Borot, A., Bussière, B., Dumont, P., Gautier, J., Gobert, O., Goddet, J.-P., Gonsalves, A., (0000-0002-4626-0049) Irman, A., Leemans, W. P., Lopez-Martens, R., Mennerat, G., Nakamura, K., Ouillé, M., Pariente, G., Pittman, M., (0000-0002-4738-6436) Püschel, T., Sanson, F., Sylla, F., Thaury, C., (0000-0003-3926-409X) Zeil, K., Fabien Quéré, A., Jeandet, A., Jolly, S. W., Borot, A., Bussière, B., Dumont, P., Gautier, J., Gobert, O., Goddet, J.-P., Gonsalves, A., (0000-0002-4626-0049) Irman, A., Leemans, W. P., Lopez-Martens, R., Mennerat, G., Nakamura, K., Ouillé, M., Pariente, G., Pittman, M., (0000-0002-4738-6436) Püschel, T., Sanson, F., Sylla, F., Thaury, C., (0000-0003-3926-409X) Zeil, K., and Fabien Quéré, A.

Abstract

The investigation of spatio-temporal couplings (STCs) of broadband light beams is becoming a key topic for the optimization as well as applications of ultrashort laser systems. This calls for accurate measurements of STCs. Yet, it is only recently that such complete spatio-temporal or spatio-spectral characterization has become possible, and it has so far mostly been implemented at the output of the laser systems, where experiments take place. In this survey, we present for the first time STC measurements at different stages of a collection of high-power ultrashort laser systems, all based on the chirped-pulse amplification (CPA) technique, but with very different output characteristics. This measurement campaign reveals spatio-temporal effects with various sources, and motivates the expanded use of STC characterization throughout CPA laser chains, as well as in a wider range of types of ultrafast laser systems. In this way knowledge will be gained not only about potential defects, but also about the fundamental dynamics and operating regimes of advanced ultrashort laser systems.

Published
2022

5. The national ignition facility: laser performance status and performance quad results at elevated energy

Author

Di Nicola, J.M., primary, Bond, T., additional, Bowers, M., additional, Chang, L., additional, Hermann, M., additional, House, R., additional, Lewis, T., additional, Manes, K., additional, Mennerat, G., additional, MacGowan, B., additional, Negres, R., additional, Olejniczak, B., additional, Orth, C., additional, Parham, T., additional, Rana, S., additional, Raymond, B., additional, Rever, M., additional, Schrauth, S., additional, Shaw, M., additional, Spaeth, M., additional, Van Wonterghem, B., additional, Williams, W., additional, Widmayer, C., additional, Yang, S., additional, Whitman, P., additional, and Wegner, P., additional

Published
2018
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6. The Apollon 10 PW laser: experimental and theoretical investigation of the temporal aspects (orale)

Author

Dimitrios Papadopoulos, J-P, Zou, Catherine Leblanc, Chériaux, G., patrick Audebert, Frédéric Druon, Mennerat, G., Ramirez, P., Luc Martin, Fréneaux, A., Audrey Beluze, Lebas, N., Monot, P., François Mathieu, Audebert, P., Laboratoire pour l'utilisation des lasers intenses (LULI), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'optique appliquée (LOA), École Nationale Supérieure de Techniques Avancées (ENSTA Paris)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Charles Fabry / Lasers, Laboratoire Charles Fabry (LCF), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), Laboratoire Interactions, Dynamiques et Lasers (ex SPAM) (LIDyl), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2016

8. High-contrast 10-fs OPCPA-based Front-End for the Apollon-10PW laser (Orale)

Author

Dimitrios Papadopoulos, Patricia Ramirez, Pellegrina, A., Lebas, N., Catherine Leblanc, Gilles Cheriaux, J-P, Zou, Mennerat, G., Monot, P., Mathieu, F., Audebert, P., patrick Audebert, Frédéric Druon, Laboratoire pour l'utilisation des lasers intenses (LULI), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Charles Fabry / Lasers, Laboratoire Charles Fabry (LCF), Université Paris-Sud - Paris 11 (UP11)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Interactions, Dynamiques et Lasers (ex SPAM) (LIDyl), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), and Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Nonlinear optics, Ultrafast nonlinear optics, parametric processes, Ultrafast lasers
Abstract

International audience; We present a high-contrast 10-fs Front-End for Ti:sapphire PW-lasers within the Apollon-10PW project. This injector uses OPCPA pumped at 100 Hz by Yb-based CPA chain. Combination of OPCPA and XPW permits a >10 12 contrast ratio.

Published
2015

9. A Highly Efficient, Angle-Insensitive Solar Quantum Concentrator Based on Microstructured Plastic Optical Fiber

Author

Besida, O., Gobert, O., Comte, M., Mennerat, G., Rondeaux, F., Jeanney, C., Starzynski, P., Fajolles, C., Guenoun, P., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Serveurs Laser (SLIC), Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Laboratoire Interactions, Dynamiques et Lasers (ex SPAM) (LIDyl), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Interactions, Dynamiques et Lasers (ex SPAM) (LIDyl), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Département des Accélérateurs, de Cryogénie et de Magnétisme (ex SACM) (DACM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire Interdisciplinaire sur l'Organisation Nanométrique et Supramoléculaire (LIONS), Nanosciences et Innovation pour les Matériaux, la Biomédecine et l'Energie (ex SIS2M) (NIMBE UMR 3685), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), and Lebe, Caroline

Subjects
[PHYS]Physics [physics], Physics::Optics, [PHYS] Physics [physics]
Abstract

International audience; A new device made of very specific microstructured fluorescent plastic optical fibers, capable of concentrating solar radiation towards photovoltaic solar cells is studied in the QUYOS project. This device transforms a multidirectionnal and polychromatic flux of solar light to a monochromatic and monodirectionnal intense flux of light with a high conversion efficiency. The very specific behaviour of these fibers is due to the convergence of several quantum phenomena. Mainly the coincidence of the fluorescent band of the dye with the forbidden band of the photonic crystal from the microstructured fiber restricts the phase space of desexcitation only along the axis of the fiber. Moreover, a coupling of the fluorescence with the allowed modes of the central waveguide of the fiber does enhance the radiative desexcitation thanks to the Purcell effect.

Published
2015

11. Largely tunable midinfrared (8-12 mu m) difference frequency generation is isotropic semiconductors

Author

Haidar, R., Mustelier, A., Kupecek, Ph., Rosencher, E., Triboulet, R., Mennerat, G., and Lemasson, Ph.

Subjects
Infrared radiation -- Research, Semiconductors -- Research, Semiconductors -- Optical properties, Gallium arsenide -- Research, Gallium arsenide -- Optical properties, Physics
Abstract

Largely tunable midinfrared (8-12 mu m) generation is obtained in GaAs and AnZe slabs by difference frequency mixing of optical paramagnetic oscillator output waves (approximately 2 mu m). The coherence lengths determined in semiconductor wedges are in agreement with estimates from known Sellmeir formulas.

Published
2002

12. Design and current progress of the Apollon 10 PW project (orale)

Author

J-P, Zou, Catherine Leblanc, Dimitrios Papadopoulos, Gilles Chériaux, patrick Audebert, Mennerat, G., Frédéric Druon, Ludovic Lecherbourg, Alain Pellegrina, Patricia Ramirez, Fabio Giambruno, Antoine Freneaux, Leconte, F., Badarau, D., Boudenne, J. M., Fournet, D., Valloton, T., Jean-Luc Paillard, Veray, J., Pina, M., Monot, P., Jean Paul Chambaret, Martin, P., François Mathieu, Audebert, P., François Amiranoff, Laboratoire pour l'utilisation des lasers intenses (LULI), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'optique appliquée (LOA), École Nationale Supérieure de Techniques Avancées (ENSTA Paris)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Charles Fabry / Lasers, Laboratoire Charles Fabry (LCF), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), Laboratoire Interactions, Dynamiques et Lasers (ex SPAM) (LIDyl), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]
Abstract

International audience; The objective of the Apollon project is the generation of 10 PW peak power pulses of 15 fs at 1 shot/minute. In this paper the Apollon facility design, the technological challenges and the current progress of the project will be presented.

Published
2014

13. The Apollon 10 PW laser: experimental and theoretical investigation of the temporal characteristics

Author

Papadopoulos, D.N., primary, Zou, J.P., additional, Le Blanc, C., additional, Chériaux, G., additional, Georges, P., additional, Druon, F., additional, Mennerat, G., additional, Ramirez, P., additional, Martin, L., additional, Fréneaux, A., additional, Beluze, A., additional, Lebas, N., additional, Monot, P., additional, Mathieu, F., additional, and Audebert, P., additional

Published
2016
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16. Largely tunable midinfrared (8–12 μm) difference frequency generation in isotropic semiconductors.

Author

Haı¨dar, R., Mustelier, A., Kupecek, Ph., Rosencher, E., Triboulet, R., Lemasson, Ph., and Mennerat, G.

Subjects
SEMICONDUCTORS, FREQUENCIES of oscillating systems
Abstract

Largely tunable midinfrared (8–12 μm) generation is obtained in GaAs and ZnSe slabs by difference frequency mixing of optical parametric oscillator output waves (∼2 μm). The coherence lengths determined in semiconductor wedges are in excellent agreement with estimates from known Sellmeir formulas. © 2002 American Institute of Physics. [ABSTRACT FROM AUTHOR]

Published
2002
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17. High-contrast 10-fs OPCPA-based Front-End for the Apollon-10PW laser

Author

Papadopoulos, D. N., primary, Ramirez, P., additional, Pellegrina, A., additional, Lebas, N., additional, Le Blanc, C., additional, Chériaux, G., additional, Zou, J.P, additional, Mennerat, G., additional, Monot, P., additional, Mathieu, F., additional, Audebert, P., additional, Georges, P., additional, and Druon, F., additional

Published
2015
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18. Design and current progress of the Apollon 10 PW project

Author

Zou, J.P., primary, Le Blanc, C., additional, Papadopoulos, D.N., additional, Chériaux, G., additional, Georges, P., additional, Mennerat, G., additional, Druon, F., additional, Lecherbourg, L., additional, Pellegrina, A., additional, Ramirez, P., additional, Giambruno, F., additional, Fréneaux, A., additional, Leconte, F., additional, Badarau, D., additional, Boudenne, J.M., additional, Fournet, D., additional, Valloton, T., additional, Paillard, J.L., additional, Veray, J.L., additional, Pina, M., additional, Monot, P., additional, Chambaret, J.P., additional, Martin, P., additional, Mathieu, F., additional, Audebert, P., additional, and Amiranoff, F., additional

Published
2015
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19. Optical regenerative amplifier based on parametric amplification of femtosecond chirped laser pulse

Author

Hugonnot, E., Nellet, A., Mennerat, G., Eric Freysz, Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA-CESTA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire Structure et Dynamique par Résonance Magnétique (LCF) (LSDRM), Nanosciences et Innovation pour les Matériaux, la Biomédecine et l'Energie (ex SIS2M) (NIMBE UMR 3685), Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Centre de physique moléculaire optique et hertzienne (CPMOH), Université Sciences et Technologies - Bordeaux 1 (UB)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), and Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1

Subjects
[PHYS]Physics [physics], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2005

22. The Apollon-10P project: Design and current status

Author

Papadopoulos, D. N., primary, Le Blanc, C., additional, Chériaux, G., additional, Georges, P., additional, Zou, J.P, additional, Mennerat, G., additional, Druon, F., additional, Pellegrina, A., additional, Ramirez, P., additional, Giambruno, F., additional, Fréneaux, A., additional, Leconte, F., additional, Badarau, D., additional, Boudenne, J.M., additional, Audebert, P., additional, Fournet, D., additional, Valloton, T., additional, Greverie, C., additional, Paillard, J.L., additional, Veray, J.L., additional, Pina, M., additional, Monot, P., additional, Martin, P., additional, Mathieu, F., additional, Chambaret, J.P., additional, and Amiranoff, F., additional

Published
2013
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23. Apollon-10P: Status and implementation

Author

Chériaux, G., primary, Giambruno, F., additional, Fréneaux, A., additional, Leconte, F., additional, Ramirez, L. P., additional, Georges, P., additional, Druon, F., additional, Papadopoulos, D. N., additional, Pellegrina, A., additional, Le Blanc, C., additional, Doyen, I., additional, Legat, L., additional, Boudenne, J. M., additional, Mennerat, G., additional, Audebert, P., additional, Mourou, G., additional, Mathieu, F., additional, and Chambaret, J. P., additional

Published
2012
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28. TW lasers in air: ultra-high powers and optimal control strategies

Author

Bonacina, L., primary, Béjot, P., additional, Extermann, J., additional, Moret, M., additional, Ackermann, R., additional, Lascoux, N., additional, Salmon, E., additional, Kasparian, J., additional, Salamé, R., additional, Rohwetter, Ph., additional, Stelmaszczyk, K., additional, Li, S., additional, Lindinger, A., additional, Wöste, L., additional, Champeaux, S., additional, Bergé, L., additional, Guet, C., additional, Blanchot, N., additional, Bonville, O., additional, Boscheron, A., additional, Canal, P., additional, Castaldi, M., additional, Hartmann, O., additional, Lepage, C., additional, Marmande, L., additional, Mazataud, E., additional, Mennerat, G., additional, Patissou, L., additional, Raffestin, D., additional, and Wolf, J.-P., additional

Published
2007
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29. 32TW atmospheric white-light laser

Author

Béjot, P., primary, Bonacina, L., additional, Extermann, J., additional, Moret, M., additional, Wolf, J. P., additional, Ackermann, R., additional, Lascoux, N., additional, Salamé, R., additional, Salmon, E., additional, Kasparian, J., additional, Bergé, L., additional, Champeaux, S., additional, Guet, C., additional, Blanchot, N., additional, Bonville, O., additional, Boscheron, A., additional, Canal, P., additional, Castaldi, M., additional, Hartmann, O., additional, Lepage, C., additional, Marmande, L., additional, Mazataud, E., additional, Mennerat, G., additional, Patissou, L., additional, Prevot, V., additional, Raffestin, D., additional, and Ribolzi, J., additional

Published
2007
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30. Femtosecond Lidar and Coherent Control

Author

Wolf, Jean-Pierre, primary, Bonacina, L., additional, Courvoisier, F., additional, Moret, M., additional, Bejot, P., additional, Extermann, J., additional, Rondi, A., additional, Kasparian, J., additional, Lascoux, N., additional, Salamé, R., additional, Salmon, E., additional, Maioli, P., additional, Boutou, V., additional, Guyon, L., additional, Thuillier, B., additional, Champeaux, S., additional, Berge, L., additional, Guet, C., additional, Blanchot, N., additional, Bonville, O., additional, Boscheron, A., additional, Canal, P., additional, Castaldi, M., additional, Hartmann, O., additional, Lepage, C., additional, Marmande, L., additional, Mazataud, E., additional, Mennerat, G., additional, Patissou, L., additional, Raffestin, D., additional, Roth, M., additional, and Rabitz, H., additional

Published
2007
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34. New Ternary Sulfide for Double Application in Laser Schemes

Author

Yelisseyev, A., primary, Isaenko, L., additional, Lobanov, S., additional, Zondy, J.-J., additional, Douillet, A., additional, Thénot, I., additional, Kupecek, Ph., additional, Mennerat, G., additional, Mangin, J., additional, Fossier, S., additional, and Salaün, S., additional

Published
2000
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36. Spectral analysis of multi-beam pumped non collinear optical parametric amplifiers.

Author

Tropheme, B., Mennerat, G., and Boulanger, B.

Abstract

From multi-beam pumped OPA experiments, we demonstrated the need for singlemode pumps to preserve a good spectral contrast and that these pumps can be mutually incoherent without decreasing the amplified signal spectral quality. [ABSTRACT FROM PUBLISHER]

Published
2012

37. Understanding fifth-harmonic generation in CLBO

Author

Vodopyanov, Konstantin L., Schepler, Kenneth L., Patankar, S., Yang, S. T., Moody, J. D., Bayramian, A. J., Swadling, G. F., Barker, D., Datte, P., Mennerat, G., Norton, M., Carr, C. W., Begishev, I. A., Bromage, J., and Ross, J. S.

Published
2018
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42. Self-laser conditioning of KDP and DKDP crystals

Author

Maunier, C., Balas, M., Donval, T., Lamaignère, L., Duchateau, G., and Mennerat, G.

Abstract

We have laser conditioned a couple of KDP-SHG and DKDP-THG samples thanks to a facility which delivers 6 ns fundamental (1,053 nm, noted 1) pulses, and the harmonics generated by the crystals themselves. The conditioning ramp has been established according to a model coupling statistics and heat transfer, in order to minimize the generation of bulk laser damage during the process. Then the efficiency of this procedure has been evaluated for both samples using two laser damage testing setups, and compared to the best monochromatic conditioning process known to date. For the KDP-SHG, it appears that this procedure is less efficient than the monochromatic conditioning. But it raises the resistance to laser damage of the SHG to a level compatible with the use on megajoule-class high power lasers. For the DKDP-THG, the efficiency of both procedures is quite similar. And even if the conditioned THG still exhibits laser damage within the range of high power laser working fluences at 351 nm, the density is only a few per mm3.

Published
2011
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43. Survey of spatio-temporal couplings throughout high-power ultrashort lasers.

Author

Jeandet A, Jolly SW, Borot A, Bussière B, Dumont P, Gautier J, Gobert O, Goddet JP, Gonsalves A, Irman A, Leemans WP, Lopez-Martens R, Mennerat G, Nakamura K, Ouillé M, Pariente G, Pittman M, Püschel T, Sanson F, Sylla F, Thaury C, Zeil K, and Quéré F

Abstract

The investigation of spatio-temporal couplings (STCs) of broadband light beams is becoming a key topic for the optimization as well as applications of ultrashort laser systems. This calls for accurate measurements of STCs. Yet, it is only recently that such complete spatio-temporal or spatio-spectral characterization has become possible, and it has so far mostly been implemented at the output of the laser systems, where experiments take place. In this survey, we present for the first time STC measurements at different stages of a collection of high-power ultrashort laser systems, all based on the chirped-pulse amplification (CPA) technique, but with very different output characteristics. This measurement campaign reveals spatio-temporal effects with various sources, and motivates the expanded use of STC characterization throughout CPA laser chains, as well as in a wider range of types of ultrafast laser systems. In this way knowledge will be gained not only about potential defects, but also about the fundamental dynamics and operating regimes of advanced ultrashort laser systems.

Published
2022
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44. Dual-wavelength source from 5%MgO:PPLN cylinders for the characterization of nonlinear infrared crystals.

Author

Kemlin V, Jegouso D, Debray J, Boursier E, Segonds P, Boulanger B, Ishizuki H, Taira T, Mennerat G, Melkonian JM, and Godard A

Abstract

We conceived a unique fully parametric source based on two independent cylindrical OPOs simultaneously pumped by the same Nd:YAG laser. Each OPO delivers more than 2 mJ and is continuously tunable between 1.41 µm and 4.3 µm. This source is of particular interest for the study of the generation of infrared parametric light in nonlinear crystals. It was validated by performing difference frequency generation experiments in CdSe crystals with output in the range 8 - 10 µm.

Published
2013
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45. Experimental demonstration of five-beam-pumped optical parametric amplification.

Author

Mennerat G, Trophème B, and Boulanger B

Abstract

We experimentally demonstrated optical parametric amplification with five pumps coming from two different oscillators. By spreading those partially mutually incoherent pumps at 532 nm over different phase-matching directions around a signal at 725 nm, we obtained a pumps-to-signal efficiency of 27%.

Published
2013
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46. Phase-matching loci and angular acceptance of non-collinear optical parametric amplification.

Author

Trophème B, Boulanger B, and Mennerat G

Subjects
Equipment Design, Humans, Reproducibility of Results, Amplifiers, Electronic, Computer-Aided Design, Lasers, Oscillometry instrumentation
Abstract

A general study of phase-matching loci and associated angular acceptances is performed in the case of non-collinear parametric amplification. Numerical and analytical calculations, as well as measurements, are described for the uniaxial BBO crystal and the biaxial LBO crystal.

Published
2012
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47. Wavelength dispersion measurement of electro-optic coefficients in the range of 520 to 930 nm in rubidium titanyl phosphate using spectral interferometry.

Author

Gobert O, Fedorov N, Mennerat G, Lupinski D, Guillaumet D, Perdrix M, Bourgeade A, and Comte M

Abstract

Rubidium titanyl phosphate (RTP) is widely used for electro-optical applications at low switching voltages. RTP is nonhygroscopic and does not induce piezoelectric ringing up to the megahertz range. It has large electro-optic (EO) coefficients and a high damage threshold. We present here the EO coefficient wavelength dispersion measurements in the [550,950] nm spectral range using a method based on spectral interferometry. These data are necessary for, among other things, a quantitative modelization of an EO carrier-envelope phase shifter.

Published
2012
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