公开(公告)号：US20110170104A1

公开(公告)日：2011-07-14

申请号：US12529899

申请日：2008-03-04

申请人： Christophe Gosset ,  Jérémie Renaudier ,  Jean-Louis Oudar ,  Guy Georgea Aubin

发明人： Christophe Gosset ,  Jérémie Renaudier ,  Jean-Louis Oudar ,  Guy Georgea Aubin

IPC分类号： G01J9/04

CPC分类号： G01J9/04

摘要： The invention relates to a self-referenced device (1) for measuring the spectral phase of a periodic signal having a frequency fp, the periodic signal being carried by an optical signal, comprising: a phase shifting means (4); a transmission means (3) for transmitting at least three optical modes of said periodic signal to the phase shifting means, said optical modes defining beats at the fp frequency; the phase shifting means (4) being capable of modifying the phase difference between the beats at the fp frequency; characterised in that the measuring means (6, 7, 8) include: photoelectric conversion means (6) for detecting the variable term at the fp frequency of the optical signal received power in order to generate an electric signal (14) corresponding to the superimposition of the optical beats at the fp frequency; electric measuring means (7, 8) for measuring the amplitude of the electric signal in order to determine the amplitude of the beats at the fp frequency.

摘要翻译： 本发明涉及一种用于测量具有频率fp的周期信号的频谱相位的自参考装置（1），该周期信号由光信号承载，包括：相移装置（4）; 用于将所述周期信号的至少三种光模式发射到相移装置的传输装置（3），所述光模式以fp频率定义节拍; 相位移动装置（4）能够以fp频率修改节拍之间的相位差; 其特征在于，测量装置（6,7,8）包括：光电转换装置（6），用于检测光信号接收功率的fp频率处的可变项，以便产生对应于叠加的电信号（14） 的光学节拍在fp频率; 电测量装置（7,8），用于测量电信号的振幅，以便确定在fp频率下的节拍幅度。