Zobrazeno 1 - 10
of 84
pro vyhledávání: '"Dominique Bayart"'
Autor:
Florence Leplingard, Philippe Chartier, Catherine Martinelli, Erwan Faou, François Castella, Dominique Bayart
Publikováno v:
ESAIM: Mathematical Modelling and Numerical Analysis. 38:457-475
In this paper we study a discrete Raman laser amplification model given as a Lotka-Volterra system. We show that in an ideal situation, the equations can be written as a Poisson system with boundary conditions using a global change of coordinates. We
Autor:
Dominique Bayart
Publikováno v:
Annales Des Télécommunications. 58:1603-1639
This part aims at giving keys to understand why erbium-doped fiber amplifiers (edfa) have revolutionized signal transmission techniques and how they can complement with Raman amplification in next generation systems. A first part is dedicated to phys
Autor:
Dominique Bayart
Publikováno v:
Comptes Rendus Physique. 4:65-74
This paper provides keys to understand why erbium-doped fiber amplifiers (EDFA) have revolutionized signal transmission techniques and how they can complement with Raman amplification in the next generation of telecommunications systems. The basic ph
Autor:
Eric Lantz, A. Durecu-Legrand, Thibaut Sylvestre, Dominique Bayart, Hervé Maillotte, Arnaud Mussot, Christian Simonneau
Publikováno v:
IEEE : Photonics Technology Letters
IEEE : Photonics Technology Letters, 2005, 17, n° 6, pp.1178-1180
IEEE : Photonics Technology Letters, 2005, 17, n° 6, pp.1178-1180
Electrical measurements of the noise figure of a fiber-optical parametric amplifier are presented and compared with optical measurements. The transfer of pump noise by four-wave mixing was clearly demonstrated. A numerical model was developed to simu
Autor:
Olivier Parillaud, Dominique Bayart, P. Salet, Nicolas Michel, Gaëlle Lucas-Leclin, S.C. Auzanneau, Michel Lecomte, Michel Calligaro, Michel Krakowski, Christian Simonneau, Patrick Georges, G. Roger, Philippe Bousselet
Publikováno v:
IEEE Photonics Technology Letters. 17:738-740
With a view to improve the power level and brightness of semiconductor pump lasers, we have resorted to a scalable implementation and achieved spectral beam combining through a low-quality-factor external cavity. For that purpose, a high-power single
Autor:
Erwan Faou, François Castella, Florence Leplingard, Catherine Martinelli, Philippe Chartier, S. Borne, Dominique Bayart, Laurence Lorcy
Publikováno v:
IEEE Photonics Technology Letters. 16:2601-2603
We describe a numerical model for a multiwavelength Raman fiber laser. It uses an original algorithm which makes the model robust and fast. We show a comparison between simulated and measured Raman laser output powers, characterized by their slope ef
Publikováno v:
Optical Fiber Technology. 1:135-157
This paper deals with different issues related to the spectral behavior of erbium-doped fiber amplifiers within multichannel systems. The requirements fiber amplifiers will have to meet for implementation in future all-optical transport networks are
Autor:
J.L. Beylat, M. Semenkoff, L. Hamon, Y. Sorel, M. Guibert, J. F. Kerdiles, D. Ronarc'h, B. Clesca, Dominique Bayart
Publikováno v:
IEEE Photonics Technology Letters. 6:509-512
With the ever growing interest in wavelength division multiplexing transmission systems, the need for an optical amplifier with a large bandwidth is more and more necessary. Unlike the standard erbium-doped silica fiber amplifiers, the fluoride-based
Noise and gain band management of thulium-doped fiber amplifier with dual-wavelength pumping schemes
Publikováno v:
IEEE Photonics Technology Letters. 13:788-790
Three dual-wavelength pumping schemes (1550 nm + 1064, 1047, or 1400 nm) have been experimentally assessed for the thulium-doped fiber amplifier in terms of power and noise performance. It is shown that 1047- and 1550-nm pumping gives a better power
Publikováno v:
SPIE Proceedings.
A lumped Raman amplifier for all-Raman long-haul and ultra-long haul optical communications systems based on highly non-linear Photonic Crystal Fiber (HNL-PCF) is proposed and demonstrated. Applications for such an amplifier are discussed, focusing o