说明：  VPIphotonics仿真软件，德国VPIphotonics 公司是光纤通信领域中专业从事光通信系统和光网络与光器件模拟设计软件开发的世界公司，总部位于德国柏林， 并且在波士顿明斯克设立有研发机构。
(VPIphotonics simulation software is a global company specializing in the development of simulation design software for optical communication systems, optical networks, and optical devices in the field of fiber optic communication. Its headquarters are located in Berlin, Germany, and it has a research and development institution in Minsk, Boston.)