25 research outputs found

    Method for generating a spectral broadband source by phase matching including leakage modes

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    Autre référence de publication : EP1989590A2 - US20110206314 / Classification internationale : G02F 1/35 - G02F 1/365 / Classification européenne : G02F 1/365 -The invention concerns an optical waveguide for propagating an original light signal, comprising a first core (12) of non-linear waveguide, said first core (12) being capable of generating leaky modes from said original light signal, said guide comprising at least a second core, the first core being included in the second core, the second core being arranged relative to the first core so as to confine at least leaky modes generated by the first core from said original light signal outside said first core. Owing to said waveguide, in particular owing to said non linearities of the guide first core, a light continuum can be generated inside the inventive fiber by collinear phase matching. Moreover, by Cerenkov effect, other wavelengths are generated by the continuum wavelengths by collinear phase matching

    Nanosecond laser source

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    Title (EN) NANOSECOND LASER SOURCE (FR) SOURCE LASER NANOSECONDE International Application No.:PCT/EP2011/068199(EN)According to one aspect, the invention relates to a laser source (2) comprising a primary source (3) emitting a laser at a given pump wavelength λ0, a non-linear fibre (5) with anomalous chromatic dispersion for λ0 and at least two dispersion zeros, said non-linear fibre having at least two concentric or adjacent coupled cores at a wavelength λp greater than λ0, and means (7, 9) for coupling the pump wave in one of the cores of the non-linear fibre. (FR)Selon un aspect, l'invention concerne une source laser (2) comprenant une source d'émission laser primaire (3) à une longueur d'onde de pompe λ0 donnée, une fibre non linéaire (5) à dispersion chromatique anormale pour λ0 et au moins deux zéros de dispersion, ladite fibre non linéaire présentant au moins deux cœurs concentriques ou juxtaposés, couplés à une longueur d'onde λ0 supérieure à λ0, et des moyens de couplage (7, 9) de l'onde de pompe dans un desdits cœurs de ladite fibre non linéaire

    Hybrid Q-switch Laser Source With Low Frequency Jitter

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    Poster : LASERS-6-P-6International audienc
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