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在当今的通信领域 ,光通信是和IP技术并列的两大热点技术之一 ,其发展的速度和广度都超出以往。为了进一步介绍光网络中各种技术的最新发展情况 ,提供应用的经验和组网案例 ,我刊策划了本期“光网络”专题 ,并特别邀请了中国电信集团公司总工程师韦乐平担任本期专题的总策划。光网络所涵盖的技术内容非常丰富 ,从光器件到传输协议再到管理模型 ,韦乐平总工所撰写的《光通信系统技术的发展与展望》将为读者展开整个光通信最新发展的画卷 ,使读者能全面地了解光网络的概貌。光网络在OSI模型中属于物理层 ,因此光器件和设备在整个技术中占据了非常重要的地位 ,《光网络中关键光电子元器件》和《光交换设备及其关键技术》分别从不同的侧重点对未来全光网络所涉及到的关键器件进行了深入的介绍。WDM是整个光网络中的核心传送技术 ,在长途骨干网中得到了广泛的应用 ,并已经开始进入城域网领域 ,读者可以在本期专题的多篇文章中了解到WDM的最新发展 ,而深圳电信关于10Gbit/s系统的应用实例和相关经验 ,希望能给运营商的技术人员提供新的思路。自动交换光网络 (ASON)是近来最新发展光网络的控制方案 ,也是下一代全光网络的重要组成部分 ,尽管其尚处于发展阶段 ,但读者还是能从《自动交换光网络(ASON)》一文中发?
In today’s field of communications, optical communications is one of the two hot technologies tied to IP technology, and its speed and breadth are far beyond the past. In order to further introduce the latest development of various technologies in optical networks and provide application experiences and networking cases, I published the current issue of “Optical Networks” and invited Wei Leping, Chief Engineer of China Telecom Corporation, as the current issue Thematic planning. Optical network technology content is very rich, from optical devices to the transmission protocol to the management model, Wei Leping Chief Engineer of “Optical Communication System Technology Development and Prospects” will open the reader for the latest development of optical communications picture, Enable readers to fully understand the overview of optical networks. Optical networks belong to the physical layer in the OSI model. Therefore, optical devices and devices occupy a very important position in the whole technology. The “key optoelectronic devices in optical networks” and the “optical switching devices and their key technologies” are respectively transmitted from different sides Focus on the future of all-optical network involves the key components in-depth introduction. WDM is the core transport technology in the entire optical network. It has been widely used in long-distance backbone networks and has begun to enter the metro area. The readers can learn about the latest development of WDM in many articles in this issue Shenzhen Telecom 10Gbit / s system on the application of examples and related experience, hoping to give operators of technical staff to provide new ideas. Automatic Switched Optical Network (ASON) is the latest development of optical network control scheme and an important part of the next generation all-optical network. Although it is still in its development stage, readers can still choose from ASON Text?