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13 条记录 (耗时 0.016 秒)

    GENERATEUR D'IMPULSIONS ELECTRIQUES DE FORTE PUISSANCE
    1.
    发明公开
    GENERATEUR D'IMPULSIONS ELECTRIQUES DE FORTE PUISSANCE 有权
    大功率发电机的电脉冲

    公开(公告)号：EP1966888A2

    公开(公告)日：2008-09-10

    申请号：EP06847102.8

    申请日：2006-12-21

    申请人： CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS) ,  Université de Limoges

    发明人： COUDERC, Vincent ,  VERGNE, Bertrand ,  BARTHELEMY, Alain ,  GONTIER, Dominique ,  BRUNEL, Patrick

    IPC分类号： H03K3/57

    CPC分类号： H03K3/57

    摘要： The invention relates to a high power electric pulse generator, comprising a charge storage means (3), a high voltage source (2) for charging said charge storage means, a first photoconductor element (4A) connected to the reference potential and to said storage means, a second photoconductor element (4B) connected to said storage means and to a useful load (6), a first light source (7) for delivering a pulse of light to said first photoconductor, a second light source (8) for delivering a pulse of light to the said second photoconductor and a means for synchronising the emission delay between the first light source and the second light source, characterised in that said first photoconductor and said second photoconductor as passive semiconductor elements with a linear regime forming photosensitive switches, said first and second photoconductors being doped silicon photoconductors.

    PROCEDE ET DISPOSITIF D'AMPLIFICATION D'UN SIGNAL OPTIQUE
    2.
    发明公开
    PROCEDE ET DISPOSITIF D'AMPLIFICATION D'UN SIGNAL OPTIQUE 有权
    VERFAHREN UND VORRICHTUNG ZURVERSTÄRKUNGEINES OPTISCHEN SIGNALS

    公开(公告)号：EP2614561A1

    公开(公告)日：2013-07-17

    申请号：EP11773032.5

    申请日：2011-09-05

    申请人： Centre National de la Recherche Scientifique (CNRS) ,  Université De Limoges

    发明人： KERMENE, Vincent ,  DESFARGES-BERTHELEMOT, Agnès ,  BARTHELEMY, Alain

    IPC分类号： H01S3/067 ,  H01S3/00

    CPC分类号： H01S3/06725 ,  H01S3/0057 ,  H01S3/0675

    摘要： According to the invention, the optical signal (SE) is spatially divided into N elementary optical signals (S
    E .1, S
    E .2,..., S
    E .N), the spectral ranges thereof being adjacent in pairs and forming, substantially by juxtaposition, the spectral range of the optical signal; these N elementary signals are amplified respectively by means of N elementary amplifiers (4.1, 4.2,..., 4.N), the spectral ranges thereof respectively comprising the spectral ranges of said N elementary signals; the N amplified elementary signals (S
    s .1, S
    s .2,..., S
    s .N) are assembled to form an amplified optical signal (Ss), the spectral range thereof substantially coinciding with a predetermined spectral range, and finally the spectral phases of the N initial elementary signals (S
    s .1, S
    s .2,..., S
    s .N) are adjusted before amplification on the basis of the spectral phase of said amplified signal (S
    s ).

    摘要翻译： 根据本发明，光信号（SE）在空间上划分为N个基本光信号（SE.1，SE.2，...，SE.N），其光谱范围成对相邻并基本上由 并置，光信号的光谱范围; 这些N个基本信号分别通过N个基本放大器（4.1,4.2，...，4.N）进行放大，其光谱范围分别包括所述N个基本信号的光谱范围; 组合N个放大的基本信号（Ss.1，Ss.2，...，Ss.N）以形成放大的光信号（Ss），其光谱范围基本上与预定光谱范围一致，最后是光谱 根据所述放大信号（Ss）的频谱相位，在放大前调整N个初始基本信号（Ss.1，Ss.2，...，Ss.N）的相位。

    DISPOSITIF ET PROCEDE DE DETERMINATION D'UNE INFORMATION DE POLARISATION ET IMAGEUR POLARIMETRIQUE
    7.
    发明公开
    DISPOSITIF ET PROCEDE DE DETERMINATION D'UNE INFORMATION DE POLARISATION ET IMAGEUR POLARIMETRIQUE 审中-公开
    披露和程序确定信息极化和图像极化

    公开(公告)号：EP2376881A1

    公开(公告)日：2011-10-19

    申请号：EP10706023.8

    申请日：2010-01-15

    申请人： Centre National De La Recherche Scientifique CNRS

    发明人： PAGNOUX, Dominique ,  LOURADOUR, Frédéric ,  DESROCHES, Jérôme ,  BARTHELEMY, Alain ,  BREVIER, Julien

    IPC分类号： G01J4/04 ,  G01N21/21

    CPC分类号： G01J4/04 ,  A61B5/0059 ,  A61B5/0062 ,  A61B5/0064 ,  A61B5/442 ,  G01N21/21 ,  G01N2021/8438

    摘要： The invention relates to a method and to a device (2) for determining a piece of polarisation information on a measurement point of a target sample (8), the device (2) comprising: - a light source (4) capable of emitting a rectilinearly polarised light beam in a predefined direction, the light beam being intended to be reflected by the measurement point of the target sample (8); - a unit (9) for computing the piece of polarisation information on the measurement point using the beam reflected by the target sample; - a waveguide (6) for guiding the incident beam towards the target sample and the reflected beam towards the computing means (9); and – a unit (21) for rotating the polarisation, capable of rotating two orthogonal polarimetric components of the incident beam exiting the waveguide and two orthogonal polarimetric components of the reflected beam before passing through the waveguide.

    摘要翻译： 本发明涉及一种用于确定目标样本（8）的测量点上的偏振信息的方法和设备（2），该设备（2）包括： - 光源（4），其能够发射 所述光束预定方向上被所述目标样本（8）的所述测量点所反射; - 单元（9），用于使用由目标样本反射的光束来计算测量点上的偏振信息; - 波导（6），用于将入射光束导向目标样本并将反射光束导向计算装置（9）; 以及 - 用于旋转偏振的单元（21），其能够旋转离开波导的入射束的两个正交极化分量和反射束的两个正交极化分量，然后穿过波导。

    SYSTEME LASER A EMISSION D'IMPULSION PICOSECONDES
    9.
    发明公开
    SYSTEME LASER A EMISSION D'IMPULSION PICOSECONDES 有权

    公开(公告)号：EP2089943A2

    公开(公告)日：2009-08-19

    申请号：EP07870320.4

    申请日：2007-11-21

    申请人： Centre National de La Recherche Scientifique-CNRS

    发明人： PIOGER, Paul-Henri ,  VERGNE, Bertrand ,  COUDERC, Vincent ,  BARTHELEMY, Alain

    IPC分类号： H01S3/00 ,  G02F1/35

    CPC分类号： H01S3/067 ,  G02F1/3511 ,  H01S3/06712 ,  H01S3/08031 ,  H01S3/094076 ,  H01S3/1112

    摘要： The invention relates to a device (1)for generating short pulses, said device being characterised in that it comprises: a polarised pulse laser (10, 2, 3) having a polarisation direction; a bi-refringent optical fibre (6) having bi-refringence axes, wherein said polarisation direction is not co-linear with said bi-refringence axes; an output polariser (9) provided at the output of said fibre, said polariser being capable of selecting a polarisation at the output of said fibre; wherein said pulse laser in a longitudinally quasi-single mode laser.

    摘要翻译： 本发明涉及用于产生短脉冲的装置（1），所述装置的特征在于其包括：具有偏振方向的偏振脉冲激光器（10,2,3） 具有双折射轴的双折射光纤（6），其中所述偏振方向与所述双折射轴不共线; 一个设置在所述光纤输出端的输出偏振器（9），所述偏振器能够选择所述光纤输出端的偏振; 其中所述脉冲激光器为纵向准单模激光器。