optical focus switch

基本解释

In all optical networks, as the kernel part of instruments used to accomplish all optical interchange, optical switch is being a focus of research in all optical communication.
光开关是光网络中完成全光交换的核心器件，它的研究日益成为全光通信领域关注的焦点。
With an approximate analysis, we study the focus qualities of the H-G beams which passing through a paraxial ABCD optical system with hard-edge aperture: focal shift and focal switch.
用一种近解析的方法研究厄米-高斯光束通过内含硬边光阑的近轴ABCD光学系统后的聚焦特性：焦移和焦开关。