For EDFA, it describes the automatic pump control to secure fast gain control for use of WDM systems.
对于掺铒光纤放大器，特别提到自动抽引控制法起快速增益控制作用，适合波分多路系统需要。
Then the important properties parameter of EDFA is discussed, such as gain, noise, threshold value and output power etc.
然后从光纤放大器的基本原理出发，阐述了EDFA的工作原理，并介绍了当今EDFA的主要技术，之后讨论了增益、噪声、阈值和输出功率等EDFA的重要性能参数。
For a given input pump power, compared to the traditional forward-pumped L-EDFA, in the region from 1570 to 1605nm, the gain of the reflection L-EDFA is improved by 5.33dB and the saturation output power is increased by 3dB. The characteristics of the gain and NF and saturation output power of three types of reflection L-EDFA with different pump schemes were studied.
在相同泵浦功率作用下，与前向泵浦结构相比，在1570-1605nm波长范围内，平坦增益提高了5.33dB，饱和输出功率提高了3dB；研究了三种不同泵浦方式的反射式L-EDFA的增益、噪声指数和饱和输出功率特性； 7、提出了一种新颖结构的双向泵浦反射式L-EDFA。
In this transmission system, Only EDFA was used to compensated the fiber attenuation and without FEC.
详细分析了CFBG反射谱、时延和带宽的非理想特性对40Gb/s不同码型传输系统产生的影响。
The paper has built a set of models of the components in optical communication systems, such as laser, modular, mutiplexer, demutiplexer, EDFA, fiber, receiver, and so on.
本文在分析光纤通信系统各组成模块特性的基础上，建立了各模块的计算机仿真模型，包括高斯脉冲发生器、激光器、调制器、合波器、分波器、光纤信道、放大器、接收机，相位共轭器等。
It is the second research achievement that studies the DCRR bistability with EDFA.
研究含光放大器的双耦合器环腔的光双稳开关特性是我们的创新成果之二。
An intelligent EDFA developed for experiment achieves a large dynmic scope about 50dB, which can be used not only as pre-amplifier for weak signal, but also as boost amplifier for intensive signal.
智能化掺铒光纤放大技术可以使EDFA的应用更灵活，既可用作前置放大，也可用作功率放大或线路放大，同时还带来一些新的特点和优越性能。
With the technique of phase-lock, demodulation of supervisory information was realized while the modulation degree was 3%.
采用锁相技术，成功进行了3%调制度的监控信息解调。说明该方案可以实现对5级EDFA系统的监控。
The upgrade CATV system using EDFA is studied. The main achievements are as follows.
另外，对采用EDFA的新一代光波CATV系统进行了探索性的研究。
Results show that SDSMF is suitable for high speed, WDM+EDFA systems, both for its non zero dispersion to effectively suppress the four wave mixing effect, and small dispersion to avoid severe dispersion induced degradation.
结果表明小色散单模光纤具有的适当色散，既可有效抑制四波混频，又不致造成严重的色散限制，故适于高速、多路光纤通信系统采用。
Experimental investigation on C+L band EDFA with parallel configuration was carried out.
对并联结构的宽带EDFA系统进行了实验研究。
The amplified spontaneous emission is studied. Both the forward and backward ASE is simulated and their characters are analyzed in detail. Then the dual stage cascade structure is presented as a solution to reduce the ASE noise. Simulation and experimental results are presented to show the reduction efficiency.
研究了EDFA中放大的自发辐射噪声光，详细分析了前后向ASE噪声光的性质，在此基础上，提出了双段级联结构抑制ASE噪声光，并对这种方法进行了理论和实验研究。
Tunable long-period fiber gratings for EDFA gain equalization.
刘显阳。增加ZFZ解决微波线路受高楼阻挡问题。
Investigation of the effect of negative third-step chromatic dispersion in adiabatic pulse compression in EDFA
EDFA脉冲绝热压缩中负三阶色散影响的研究
The model based on the exterior character of EDFA has fast operation and also considers the saturation, uneven gain character and non-uniform amplifier spontaneous emission noise spectrum character of EDFA.
该模型基于EDFA的外特性，运算速度快，同时考虑了EDFA的饱和、增益不平坦特性以及ASE噪声谱的非均匀性。
With the development of EDFA (erbium doped fiber amplifier) and NZDFS, the effects of dispersion, attenuation and nonlinearity on performance of WDM system are minimized.
随着EDFA，非零色散位移光纤（NZDFS）等技术的不断成熟，使得衰减、非线性效应、色度色散等对于系统的影响大为减少。
This paper introduces some key techniques of all-optical net (AON) such as all-optical regeneration, dense WDM, Erbium-mixing optical amplifier EDFA, optical random stock RAM, and optical switch, etc.
概述了全光网络中的全光再生技术、密集波分复用、掺铒光纤放大器EDFA、光随机存储RAM、光开关等关键技术，提出了今后进一步研究的方向和思路。
Optimal design for broad-band raman/EDFA hybrid amplifier.
常建华，孙小菡，张明德，宽带喇曼/EDFA混合放大器的优化设计。
Secondly, EDFA designing software is studied. Low noise preamplifier is designed by using optimization method.
第二，研究了掺铒光纤放大器设计软件，对低噪声前置放大器进行了优化设计。
This article puts forward a method to test the margin of the fiber optics transmission system with EDFA.
提出了一种用于带有光放大器的光传输系统裕量的测试方法。