Zobrazeno 1 - 10
of 401
pro vyhledávání: '"Guy, Millot"'
Autor:
Karolina Stefańska, Pierre Béjot, Julien Fatome, Guy Millot, Karol Lech Tarnowski, Bertrand Kibler
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-9 (2024)
Abstract We present theoretical and experimental evidence of high-gain far-detuned nonlinear frequency conversion, extending towards both the visible and the mid-infrared, in a few-mode graded-index silica fiber pumped at 1.064 $$\upmu \hbox {m}$$ μ
Externí odkaz:
https://doaj.org/article/fab0e9456d6b4d67ba9a9d13b21dbb66
Autor:
Nawell Ould Moussa, Tigran Mansuryan, Charles-Henri Hage, Marc Fabert, Katarzyna Krupa, Alessandro Tonello, Mario Ferraro, Luca Leggio, Mario Zitelli, Fabio Mangini, Alioune Niang, Guy Millot, Massimiliano Papi, Stefan Wabnitz, Vincent Couderc
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
Abstract Beam self-cleaning (BSC) in graded-index (GRIN) multimode fibers (MMFs) has been recently reported by different research groups. Driven by the interplay between Kerr effect and beam self-imaging, BSC counteracts random mode coupling, and for
Externí odkaz:
https://doaj.org/article/21f7cc9048ee47b488c22f18a0b5640e
Autor:
Marc Fabert, Maria Săpânțan, Katarzyna Krupa, Alessandro Tonello, Yann Leventoux, Sébastien Février, Tigran Mansuryan, Alioune Niang, Benjamin Wetzel, Guy Millot, Stefan Wabnitz, Vincent Couderc
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-6 (2020)
Abstract A low intensity light beam emerges from a graded-index, highly multimode optical fibre with a speckled shape, while at higher intensity the Kerr nonlinearity may induce a spontaneous spatial self-cleaning of the beam. Here, we reveal that we
Externí odkaz:
https://doaj.org/article/9e7dd25cc2fb44c08911323ae18d6f82
Publikováno v:
Physical Review Research, Vol 4, Iss 2, p 023098 (2022)
We demonstrate the use of dual-comb spectroscopy for isotope ratio measurements. We show that the analysis spectral range of a free-running near-infrared dual-comb spectrometer can be extended to the midinfrared by difference frequency generation to
Externí odkaz:
https://doaj.org/article/15d6332b7f504717bb379889c1fdc2ec
Autor:
Katarzyna Krupa, Alessandro Tonello, Alain Barthélémy, Tigran Mansuryan, Vincent Couderc, Guy Millot, Philippe Grelu, Daniele Modotto, Sergey A. Babin, Stefan Wabnitz
Publikováno v:
APL Photonics, Vol 4, Iss 11, Pp 110901-110901-43 (2019)
We provide a perspective overview of the emerging field of nonlinear optics in multimode optical fibers. These fibers enable new methods for the ultrafast light-activated control of temporal, spatial, and spectral degrees of freedom of intense, pulse
Externí odkaz:
https://doaj.org/article/8930507d9ccb4a489d2ea513e247f727
Autor:
Sidi-Ely Ahmedou, Guillaume Walter, Jules Herbuvaux, Romain Dauliat, Sébastien Février, Stéphane Petit, Constance Valentin, Denis Marion, Jérôme Lhermite, Laurent Labonté, Sébastien Tanzilli, Frédéric Gérôme, Benoit Debord, Fetah Benabid, Baptiste Leconte, Guy Millot, Phillipe Roy, Raphaël Jamier, Jean-Christophe Delagnes
Publikováno v:
Applied Physics B-Laser and Optics
Applied Physics B-Laser and Optics, 2023, 129, ⟨10.1007/s00340-023-08012-z⟩
Applied Physics B-Laser and Optics, 2023, 129, ⟨10.1007/s00340-023-08012-z⟩
We present the simulation, fabrication, and characterization of large area microstructured fiber tapers which enables broadband phasematching conditions of the four wave-mixing process. These silica-based tapers are intended to serve as a nonlinear g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a310d60d2efb5506af0eb7454f64eba8
https://hal.science/hal-04074716
https://hal.science/hal-04074716
Publikováno v:
Physical Review Letters
Physical Review Letters, 2022, 129 (6), pp.063901. ⟨10.1103/PhysRevLett.129.063901⟩
Physical Review Letters, 2022, 129 (6), pp.063901. ⟨10.1103/PhysRevLett.129.063901⟩
We address the problem of thermalization in the presence of a time-dependent disorder in the framework of the nonlinear Schr\"odinger (or Gross-Pitaevskii) equation with a random potential. The thermalization to the Rayleigh-Jeans distribution is dri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99b560dc48b1f7d6cfa9682901925916
https://pubmed.ncbi.nlm.nih.gov/36018655
https://pubmed.ncbi.nlm.nih.gov/36018655
Autor:
R. Fona, Guy Millot, Stefan Wabnitz, Katarzyna Krupa, Badr Mohamed Ibrahim Shalaby, Vincent Couderc, Fabio Baronio, Alexis Labruyère, Alessandro Tonello, Alejandro B. Aceves
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-9 (2020)
Scientific Reports
Scientific Reports
We experimentally demonstrate the spatial self-cleaning of a highly multimode optical beam, in the process of second-harmonic generation in a quadratic nonlinear potassium titanyl phosphate crystal. As the beam energy grows larger, the output beam fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f47ce36148af7d4adbdf8cb05c882ef
http://link.springer.com/article/10.1038/s41598-020-64080-7
http://link.springer.com/article/10.1038/s41598-020-64080-7
Autor:
Sidi-Ely Ahmedou, Romain Dauliat, Alexandre Parriaux, Alix Malfondet, Guy Millot, Laurent Labonte, Sébastien Tanzilli, Romain Dalidet, Jean-Christophe Delagnes, Philippe Roy, Raphael Jamier
Publikováno v:
Optica Advanced Photonics Congress 2022.
We report on the conception, fabrication and characterization of a new concept of optical fiber enabling a precise control of the ratio between the 2nd and 4th-order chromatic dispersion (respectively β2 and β4) at 1.55 μm which is primordial for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8554c2e644716d5cd210d5707fa26ea4
https://doi.org/10.1364/sof.2022.sow5g.4
https://doi.org/10.1364/sof.2022.sow5g.4
Autor:
Sidi-Ely Ahmedou, Romain Dauliat, Sébastien Février, Guillaume Walter, Jean-Christophe Delagnes, Laurent Labonte, Sébastien Tanzilli, Frédéric Gérôme, Benoît Debord, Fetah Benabid, Guy Millot, Philippe Roy, Raphael Jamier
Publikováno v:
Optica Advanced Photonics Congress 2022.
We numerically demonstrate a broadband parametric gain around 2 µm using a tapered photonic crystal fiber.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cef1e58a609defe858af4e63ad64fef7
https://doi.org/10.1364/sof.2022.sow5g.5
https://doi.org/10.1364/sof.2022.sow5g.5