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介绍了波分复用 (WDN)的工作原理及其对系统部件的基本要求 ,讨论述了D_WDN技术在MAN网络中的应用及MAND_WDN光纤环型网络的基本结构和主要特点 ,认为D_WDN技术与光时分复用 (OTDM )技术、光芯复用 (OSDM )技术 ,特别是光集成 (OIC)技术、光计算 (OC)技术以及神经网络计算 (NC :NeuralComput ing)技术一样 ,会得到全面的发展 ,而且必将迎来全光通信美好的明天。
The working principle of WDM and its basic requirements on system components are introduced. The application of D_WDN technology in MAN network and the basic structure and main features of MAND_WDN optical fiber ring network are introduced. It is concluded that D_WDN technology and optical OTDM technology, optical core multiplexing (OSDM) technology, especially optical integration (OIC) technology, optical computing (OC) technology and neural network computing (NC) technology, will be fully developed , But will usher in a better tomorrow for all-optical communications.