OptiSystem 是一套创新的光通信系统仿真软件，它集设计、测试和优化各种类型宽带光网络物理层的虚拟光连接等功能于一身，从长距离通讯系统到LANS和MANS都使用。一个基于实际光纤通讯系统模型的系统级模拟器，OptiSystem具有强大的模拟环境和真实的器件和系统的分级定义。它的性能可以通过附加的用户器件库和完整的界面进行扩展，而成为一系列广泛使用的工具。-OptiSystem is a set of innovative optical communication system simulation software, it set design, testing and optimization of various types of broadband optical network physical layer of virtual optical connection and other functions in one,　a long distance communication system to LANS and MANS are used. A system level simulator based on actual fiber optic communication system model, OptiSystem has a strong simulation environment and a hierarchical definition of real devices and systems. Its performance can be extended by the addition of the user device library and the complete interface, and become a series of widely used tools.