全光网通信的实现

全光网(AON)就是网中直到终端用户节点之间的信号通道仍然保持着光的形式,中间没有光电转换器,信息传递过程无需面对电子器件处理信息速率难以提高的困难.文章对当前全光网络的实现进行了分析,介绍了全光网络软硬件技术,从光传输,光器件,光节点技术和光接入技术四个方面进行分析.指出了与电理论和器件相比,光理论和器件还很不成熟.自动交换光网络(ASON)是全光网实现的软件基础.     

光码分多址网络技术及其研究进展

介绍了光码分多多的基本概念、技术及其特点，重点综述了光码分多址网的光编码和光解码技术及其研究进展，最后指出光码分多址网络技术是实现全光网的重要技术，应用前景广阔。     

WDM全光网技术

随着光波分复用（ＷＤＭ）技术的日趋成熟，ＷＤＭ全光网技术已成为国际上的研究热点，本文说明了ＷＤＭ全光网的基本概念，组成，关键技术，关键器件以及全光网的优点，简要介绍了当今世界上几个主要的ＷＤＭ全光网的工作，并且对全光网今后的发展方向和趋势作了展望。     

WDM全光网

ＷＤＭ全光网是随着人们对通信业务量和业务多要必需求的增加而出现的一种新的网络技术。由于采用波长路由方式和全光交换技术,ＷＤ嵛光网克服了“电子瓶颈”,人有对信号透明片且有现有通信网络兼容等优点,本文介绍了ＷＤ嵛光网的技术资源、性能特点、关键单元技术、以及国内外发展的现状。     

交换技术演进新说 第九讲光交换与软交换

1全光网与光交换技术 1.1全光网 众所周知,通信网络由传输和交换两部分组成,其中传输部分为网络的链路(1ink),交换部分为网络的节点(node).     

全光网技术及发展趋势

本文详细介绍了全光网的概念和特点，着重阐述了全光网应用中的关键技术。     

全光网的关键技术

随春光纤通信的飞速发展，光纤通信有向全光网发展的趋势。本文介绍了全光网的一些关键技术，展望了未来光通信的发展前景。     

新一代的光纤通信网--全光网

综述了全光网的基本概念，并介绍了全光网的网络拓扑结构、波长路由等关键技术和全光网的发展趋势。     

全光网——光通信的发展方向

全光网(AON,all-opticalnetwork)以波长路由光交换技术和波分复用传输技术(WDM)为基础,它的网络节点由光分插复用器和光交叉连接器构成,能在光域上实现高速信息流的传输、交换、路由和故障恢复等功能。光交叉连接器(OXC)与光分插复用器(OADM)是全光网中最重要的网络器件,是真正实现全光网关键性功能的必要前提,也是目前国内外光通信器件厂商研究和开发的热点。本文结合全光网的发展,介绍了光交叉连接器(OXC)、光分插复用器(OADM)与掺饵光纤放大器(EDFA)的基本原理以及全光网的交换技术,对光通信网和传统通信网进行了比较与讨论,并介绍了我国和国外在全光通信网上的发展状况。     

WDM全光通信网

本文介绍了WDM全光网的概念及其网络分层结构，然后从实现的角度讨论了WDM全光网的几个关键技术。最后总结了WDM全光网的优点及传输限制并对其未来的发展趋势做了展望。     

An Optical Layer Lightpath Management Protocol for WDM AONs

In this work, we propose a control protocol for lightpath management in the optical layer of all-optical networks (AONs). AONs follow a layered structure, as used by various network standards, where each layer communicates with its peer through Protocol Data Units (PDUs). In the context of Open System Interconnection (OSI) Reference Model (RM), a new layer, called optical layer, has been introduced in the AON architecture to manage the lightpath related functions. The optical layer lies in between the physical layer and the data link layer. The objective of this paper is to define a specification for an optical layer protocol for managing lightpaths in AONs. In order to study the dynamics of the optical layer protocol system, we first employ the communicating finite state machine model to represent the protocol. Then a reachability analysis of the model is performed to verify the protocol. This paper shows how the optical layer protocol can be specified formally and made error-free by the step-wise refinement of an initial specification, where validation is done after each refinement.     

保偏光纤技术进展及发展趋势

文章阐述了保偏光纤(PMF)的基本原理和制造技术，分析了国内外PMF的技术进展及PMF的发展趋势。     

应用于光接入网的高速无线光通信

介绍了可用于光接入网解决目前全网通信瓶颈的高速无线光通信技术,阐述了它的工作原理与系统组成并着重讨论了系统实现的关键技术和相应的解决方案。     

波分复用全光通信光纤网

本文综述了波分复用全光通信光纤网的基本概念，网络拓朴结构，波长路由，光学交叉连接和全光网的发展趋势。     

EPON接入网的关键技术研究

介绍EPON的网络结构、层次模型，探讨多点控制协议(MPCP)的关键问题，包括：系统同步、测距、ONU的自动识别、TDM业务传输、信息安全及以太网管理等关键技术，提出OLT及ONU的软硬件实现方案。     

Duality relationships among “space”,“time”, and “wavelength” in all-optical networks

All-optical networks (AONs) are emerging as the next generation broadband networks for both wide-area and local-area networks. New optical devices such as wavelength routers, and wavelength division switches are currently being developed to realize these AONs. In this paper, we examine “dual” properties that exist among “space”, “time”, and “wavelength” in multiplexed signals in AONs. This observation will clarify relationships among architectural alternatives and suggest novel space-time-wavelength switching structures. It will also lead to a performance analysis of all-optical networks, by exploiting some well studied results obtained for classical circuit switched systems. A study on call blocking probabilities will be reported in a separate paper     

Review on Dynamic Bandwidth Allocation of GPON and EPON

The passive optical network (PON) technology has been drastically improved in recent years. In spite of using the optical technology, the utilization of the entire bandwidth is a very challenging task. The main categories of PON are the Ethernet passive optical network (EPON) and gigabit passive optical network (GPON). These two networks use the dynamic bandwidth allocation (DBA) algorithm to attain the maximum usage of bandwidth, which is provided in the network dynamically according to the need of the customers with the support of the service level agreement (SLA). This paper will provide a clear review about the DBA algorithm of both technologies as well as the comparison.     

光纤陀螺综述

综述了光纤陀螺的基本原理，主要特点，分类情况及关键技术。阐述了国内外发展现状，同时对今后的发展趋势作了预测。     

全光通信网安全问题初探

本文介绍了全光通信网(AON)的概念。研究了全光网络中光层可能遭到的两种网络攻击:服务玻坏和网络窃听以及对网络通信安全的影响。提出了全光网络安全的考虑方法和可以采取的安全策略。     

成品率驱动的光刻校正技术

光刻校正技术已成为超深亚微米下集成电路设计和制光刻校正技术的基本原理以及在IC设计中使用这些技术需要注意的问题,为可制造性设计提供有价值的指导.