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    • 1. 发明公开
    • System for generating a beat signal
    • 系统zur Erzeugung eines Schwebungssignals
    • EP2608327A1
    • 2013-06-26
    • EP12008504.8
    • 2012-12-20
    • Menlo Systems GmbH
    • Holzwarth, Ronald, Dr.Fischer, Marc, Dr.Mei, Michael, Dr.
    • H01S3/00H01S3/23G01J9/02H01S3/13
    • The invention relates to a system (1) for generating a (high-frequency) beat signal. The system comprises a first light source (3) with a multimode spectrum, a second light source (4) and a coupler and filter arrangement (5) with a first port (6) for coupling in light from the first light source (3), and a second port (7) for coupling in light from the second light source (4). Furthermore, a detector (11) is provided to which light of both light sources (3, 4) can be supplied. The coupler and filter arrangement (5) comprises a spectral filter (20, 28) for filtering out one or several modes from the spectrum of the first light source (3), and a first fiber-optical coupler (17, 23, 26) for coupling the light of the second light source (4) and the not yet filtered or the already filtered light of the first light source (3). The coupler and filter arrangement (5) is configured to be merely fiber-optical according to the invention.
    • 本发明涉及一种用于产生(高频)拍频信号的系统(1)。 该系统包括具有多模光谱的第一光源(3),具有第一端口(6)的第二光源(4)和耦合器和滤波器装置(5),用于在来自第一光源(3)的光中耦合, ,以及用于在来自第二光源(4)的光中耦合的第二端口(7)。 此外,设置有可以供应两个光源(3,4)的光的检测器(11)。 耦合器和滤波器装置(5)包括用于从第一光源(3)的光谱滤出一个或多个模式的光谱滤波器(20,28)和第一光纤耦合器(17,23,26) 用于耦合第二光源(4)的光和第一光源(3)的未被滤波或已经滤波的光。 耦合器和滤波器装置(5)被配置为仅根据本发明的光纤。