光因特网也叫 IP网或 IP over DWDM。简言之，直接在光上运行的因特网就是光因特网。在光因特网中，高性能路由器通过光 ADM或 WDM耦合器直接连至 WDM光纤，光纤内各波长是链路层互连的。 构成光因特网的网元包括：光纤、激光器、 EDFA、光耦合器、电再生中继器、转发器、光分 Optical Internet is also called IP network or IP over DWDM. In short, the Internet that runs directly on the light is the optical Internet. In the optical Internet, high-performance routers are connected directly to WDM optical fibers through optical ADMs or WDM couplers, with each wavelength in the optical fiber being link-layer interconnected. The network elements that make up the optical Internet include optical fiber, laser, EDFA, optocoupler, regenerative repeater, transponder, optical splitter