Experiment results using single mode fiber as standardwaveguide show that the average end-coupling loss is 0.
单模光纤作为标准波导的端面耦合自动调芯试验显示，平均耦合损耗分别为0。
2
The article mainly introduces the composition, design method, research process, parameter verification of coaxial, waveguide S-parameter standard devices.
主要介绍同轴、波导s参数标准件的组成、设计方法、研制过程及参数定标的方法。
3
Common gain equalizers include standard optical filter, medium multi-layer thin film filter, fiber grating, and planar waveguide.