基于光外差法的宽带示波器滤波器频响测试技术研究  

Research on Frequency Response of Broadband Sampling Oscilloscope Filter based on Optical Heterodyne Interference Method

作　　者：朱兴邦[1] 刘超[1] 费丰[1] 孙权社[1] 

机构地区：[1]中国电子科技集团公司第四十一研究所,青岛266555

出　　处：《宇航计测技术》2015年第1期10-13,共4页Journal of Astronautic Metrology and Measurement

摘　　要：分析了光外差测试频响的原理,提出了采用光外差法测试宽带示波器滤波器频响的方案,分析了偏振态和波长稳定性对于测试结果的影响。实验结果表明,光外差法测试宽带示波器光电模块频响方案可行,9.953Gbps滤波器下测试,3d B带宽频率处频响重复性小于0.1d B。The principle of frequency response measurement has been established using the optical heterodyne method, and the optical heterodyne method is used for measuring the frequency response of broadband sampling oscilloscope filter. The polarization and wavelength stability of light source are ana-lyzed for the influence of the test results. The experiment result shows that, the optical heterodyne method testing frequency response of broadband sampling oscilloscope filter is feasible. Testing 9. 953Gbps filter, the frequency response repeatability of 3dB bandwidth is less than 0. 1dB.

关 键 词：测量 频响 光外差法 宽频示波器 滤波器 

分 类 号：TN29[电子电信—物理电子学]