光纤线路

高速SDH光纤线路系统设计概要

The design outline of high-speed SDH fiber line system

LD探测器有许多潜在应用，作为一个例子，我们做了光纤线路故障定位实验。

There are many potential applications for photodetection of LD , as an example , finding faults along a fiber is reported .

本文对一个采用1.3μm直接强度调制LD（激光二极管）的微波光纤线路就器件微波特性、系统损耗、噪声、非线性和动态范围等进行了分析，并测试了部分参数特性。

This paper analyses the microwave characteristics of devices , loss , noise , nonlinearity and dy - namic range of the system for the microwave fiber-optic link using a 1.3 μ m direct intensity modulated LD ( laser diode ), and some test results of the parameters are described .

本文叙述X频段（10GHz）光纤线路在雷达测试中的独特应用：用高速光纤线路作延迟线，可改进雷达相位噪声测试机和雷达转发（器）测试机的性能。

X-band fiber optic links for unique application in radar measurement are described . It is demonstrated that the capability and performance of radar repea - ter and phase noise test sets can be improved by utilizing high-speed fiber optic links as delay lines .

光纤线路运行维护智能系统研究

Study on Intelligent System for Operation Maintenance of Optical Fiber Network

565Mbit/s光纤线路复用终端机的研制

Research and Development of 565 Mbit / s Optical Line Multiplexing Terminal

光纤线路中菲涅尔反射对传输的影响

Transmission Influenced by Fresnel Reflection in Optical Fiber Circuits

用于雷达测试的光纤线路

Fiber Optic Links for Radar Measurement Application

光时域反射仪测试范围与光纤线路测试精度分析

Analysis of Relations between Optical Time Domain Reflectometer 's Survey Range and Accuracy in Optical Fiber Telecommunication

在美国，铜线可能不得不使用一英里远的光纤线路接入到家中。

Data can travel fast on copper wire , but it slows down the farther it goes .

一旦出现光纤线路切断或设备失效等故障，会导致非常严重的影响。

Considering the common failures such as optical cable cut off and equipment fails , there should be serious consequences .

而异常情况包括不可抗拒自然力、提供者的预定停机维护或光纤线路的意外中断。

Exceptions include acts of God , the provider 's scheduled downtime maintenance , or accidental cutting of the fiber optics line .

光纤线路性能制约着高速率、大容量、远距离光传输系统的发展与应用。

The development and application of high rare , high capacity and long distance optical transmission system depend on the performance of optical fiber line .

整个系统主要包括了模拟视频信号的数字化，数字信号复用与解复用，光纤线路的编解码等部分。

The whole system mainly includes the digitization of analog video signals , digital signal multiplexing and demultiplexing , fiber channel coding and decoding and so on .

珊溪水利枢纽工程地质条件复杂，光纤线路较长，自动化元器件分布较广，需要解决的技术问题很多。

Many problems need to be solved in the Shanxi Water Conservancy Project for complex geological conditions , long optical fiber lines and widely distributed automatic components .

具体来说，AT&T将新建2000座中继站，并对现有中继站进行升级，升级后的中继站光纤线路数量相较2009年将增加三倍。

Specifically , AT & T will add 2000 new cell sites and upgrade existing cell sites with three times more fiber links than it had in 2009 .

本文探讨了微波光纤线路中主要器件的高频特性和这些特性对整个光纤线路的影响。

In this paper , the high frequency characteristics of the primary compo-nents of microwave fiber-optic link and impact of these characteristics on the overall link performance are examined .

再简述光纤线路扩大容量和延长距离所需的波分多路与光纤放大器技术以及光纤类型和特性的相应选择。

Then , it briefly describes the WDM and EDFA technologies used for expanding the capacity and extending the distance of optical fiber transmission line , and the proper choice of types and characteristics of optical fiber .

到位的光纤线路在推动城市经济，与一个可以利用基础设施的高度熟练的劳动力同样至关重要。

Just as vital as fiber optic lines in an economically advancing city is the presence of a highly skilled workforce that can make the infrastructure happen and take advantage of it once it is in place .

接着，叙述WDM在光纤传输线路中的应用，对加大传输容量非常有效。

Then , it explains the application of WDM / DWDM on optical fiber transmission lines .

光纤通信线路检测到的电功率随差分群延迟变化，可以作为PMD补偿的反馈控制信号。

Electrical power , changing with differential group delay ( DGD ) and detected from an optical communication link , can be used as feedback signals of compensating for PMD .

随着SDH设备的大面积采用以及大容量的ATM交换机的不断商用化，以高速光纤传输线路和高吞吐量的网络交换节点为特征的现代通信网络格局已经形成。

With the SDH equipments are applied widely and the large capacity ATM exchangers are constantly commercialized , the modern communication network pattern has been formed with the characteristics of high-speed transmission by optic fiber circuit and high throughput in network switch nodes .

光纤微机线路保护在青海省的应用

Application of Optical Microcomputer Line Protecting in Qinghai

光纤通信线路的可靠性分析

Reliabilities of Optical Fiber Communication Lines

技术的进步带来廉价，甚至带来更有效的光纤传输线路，它将给广泛的用户带来更强劲的互联网连接服务。

Advancements in cheaper , more efficient fiber optics cables promise to bring blisteringly fast Internet connections to more users .

通信光缆拉伸应变分布测量对于保证光纤通信线路的长期可靠性具有十分重要的意义。

The measurement of tensile strain distribution of optical fiber is very necessary to guarantee the long-term reliability of optical cable .

相干光时域反射仪是多中继超长距离光纤通信线路健康监测的重要设备。

Coherent optical time domain reflectometry ( C-OTDR ) is an important instrument for health monitoring of multi-repeater super long distance optical transmission line .

光纤通信线路的偏振模色散已成为高速、长距离光纤通信系统发展的主要障碍之一。

Polarization mode dispersion ( PMD ) is considered to be one of the main obstacle for updating long haul high bitrate optical fiber transmission system .

第一部分叙述近年来以时分多路为基的电传送网的改进与发展，它采用同步数字体系，并在光纤传输线路上装用波分多路系统和光纤放大器。

In the first part , it describes the improvement and development of the TDM based electronic transport network , with the synchronous digital hierarchy SDH as basis , together with WDM and EDFA along the optical fiber transmission lines .

某电网SDH光纤通道传输线路保护信号的应用

The Application of the SDH Fiberoptics Communications on the Signals of Protection in the Electric-Net