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CN105874314B 光波导群速度延时测量装置及方法 有权 转让

光波导群速度延时测量装置及方法
摘要：
一种光波导群速度延时测量装置及方法。该装置包括：第一主波导(21)，用于输入和输出第一光信号；第一待测试波导(22)，用于耦合第一光信号生成第二光信号，并传输第二光信号、第二布拉格光栅(24)反射的光信号和第一布拉格光栅(23)反射的光信号；设置在第一待测试波导(22)的第一端的第一布拉格光栅(23)，用于对第二布拉格光栅(24)反射的光信号进行全反射；设置在第一待测试波导(22)的第二端的第二布拉格光栅(24)，用于对第二光信号和第一布拉格光栅(23)反射的光信号进行部分透射和部分反射；第一光电探测器(25)，用于接收对应的第一待测试波导(22)的第二布拉格光栅(24)透射的光信号。上述光波导群速度延时测量装置及方法，方便测试光器件群速度的延时，且占用芯片的面积较小。
摘要（英）：

An apparatus is provided. The apparatus includes: a first main waveguide, configured to input and output a first optical signal; a first to-be-tested waveguide, configured to couple the first optical signal to generate a second optical signal, and transfer the second optical signal, an optical signal that is reflected by a second fiber Bragg grating, and an optical signal that is reflected by a first fiber Bragg grating. The apparatus also includes the first fiber Bragg grating, configured to totally reflect the optical signal that is reflected by the second fiber Bragg grating; the second fiber Bragg grating, configured to partially transmit and partially reflect the second optical signal and the optical signal that is reflected by the first fiber Bragg grating; and a first photoelectric detector, configured to receive an optical signal that is transmitted by the second fiber Bragg grating of the corresponding first to-be-tested waveguide.

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