The finite difference beam propagation method(FD-BPM)is used to design a device of 66% MMI-converter-Combiners.
采用有限差分波束传输法（FD-BPM）设计了一种66%模式转换、合并器。
2
Image converter tube camera applied firstly to study changing process of profile diameter of electron beam produced by injector of accelerator is presented.
介绍了变像管扫描相机对直线感应加速器注入器中的电子束束剖面直径的应用。
3
The present invention utilizes an assisted beam that could improve the recovery rate and the saturation power of the SOA wavelength converter.