现在，运营商为了减少运营成本和增加收入，正在热衷于采用全新的、基于新一代光器件的智能型光网络。这些新器件能提供新功能和多种功能的集成。其中，一个较为典型的例子就是全光交换器件。交换机已经从原始的简单光学机械装置发展成具有新功能的高速光器件。新功能如动态可 Operators are now keen to adopt a new, intelligent optical network based on a new generation of optical devices in order to reduce operating costs and increase revenue. These new devices provide integration of new features and multiple features. Among them, a more typical example is all-optical switching device. Switches have evolved from simple, simple optical mechanics to high-speed optical devices with new capabilities. New features such as dynamic can be