The analyses show that EDFA cannot operate if ESA exists severely.
分析结果表明，ESA严重时将使EDFA不能正常工作。
Experiment result shows that the EDFA gain decreases while temperature increases.
从理论和实验两方面证实了EDFA的增益随温度的升高而降低。
The paper presents the practical research and application of EDFA in engineerings.
本文介绍EDFA实用化研究及其在实际光通信工程中的应用。
These results indicate Er3 + -doped phosphor-tellurite glass is suitable for fabricating broadband short-length EDFA.
以上结果表明掺铒磷碲酸盐玻璃适合于制作宽带短掺铒光纤放大器。
The simulator can be also used to simulate the pulse propagation in EDFA and analyze the reasons of the pulses' changes.
模拟光脉冲在EDFA中的传输情况，分析光脉冲变化原因。
At the last of this section, the error tolerances of multi-peaks filter and EDFA gain flatting filter are also analyzed.
最后还分析了多峰滤光片和增益平滑滤光片的容差特性。
Two examples are cited in this paper. They prove that the domestic EDFA has come up to the practical engineering requirements.
引用两个应用实例，证明国产的EDFA已真正达到了实用化，能满足实际工程应用要求。
Based on node isolation principle, it adopts pre emphasize technique to equilibrate the EDFA output power of all signal channels.
它以节点孤立原则为基础，采用预均衡技术对经edfa放大后的所有光信道功率均衡。
Experiments demonstrate that L-band EDFA will achieve high flat gain by employing a gain flat filter based on fiber loop mirror (FLM).
使用光纤环形镜(FLM)作为增益平坦滤波器进行L波段掺铒光纤放大器的增益平坦化实验，实现了高增益值的平坦输出。
EDFA will be widely used in toll backbone network, and also will be important part in access network and the future full optical network.
EDFA不仅会在长途干线中广泛使用，也必然将会在接入网和未来的全光网络中扮演越来越重要的角色。
Introduce the three energy level of EDFA and deduce the rate equation for population changes and propagation equation for pump and signal beams.
本论文的主要内容有：1、介绍了掺铒光纤放大器的三能级结构，并推导了掺铒光纤放大器的原子速率方程和功率传输方程。
At present, both linear high-speed optical fiber communication system and soliton transmission system are mostly using EDFA as in-line amplifier.
目前线性高速光纤通信系统和光孤子传输系统大多采用EDFA作为在线放大器来补偿光纤损耗导致的能量损失。
The method of erbium-doped fiber amplifier(EDFA) gain flattening using a fiber loop mirror(FLM) acting as a wavelength filter was analyzed in theory.
从理论上分析了利用光纤环形镜（FLM）中的偏振耦合效应作为滤波器，对掺铒光纤放大器（EDFA）实现增益平坦化的方法。
The theoretical models of Fiber Raman Amplifier (FRA) and Erbium Doped Fiber Amplifier (EDFA) are presented, and their gain spectra are accordingly calculated.
概述了拉曼光纤放大器(FRA)和掺铒光纤放大器(EDFA)的理论模型，据此计算它们的增益谱。
The NF curve obtained from the experimental data is in agreement with the numerical calculation results given by the special simulation software of EDFA Designer.
根据实验测量数据得到的噪声系数曲线与掺铒光纤放大器专用设计软件的数值模拟结果一致。
This paper studies the application of Hybrid Fiber Amplifier (HFA) in DWDM systems. The HFA is composed of EDFA and FRA that adoptes DCF as its transmitting fiber.
采用光子转换理论和数值分析方法，研究了采用DCF光纤的喇曼放大器和掺铒光纤放大器组成的混合放大器在DWDM系统中的应用。
In this paper, we report the study of the effect of SBS on various properties of the distributing erbium doped fiber amplifier (d EDFA) using a convective equation.
利用含有受激布里渊散射效应(SBS)的传输方程，研究了透明传输和最佳掺杂浓度下，受激布里渊散射效应对分布式掺铒光纤放大器(d - EDFA)的各种特性的影响。
Fiber grating is another great breakthrough in optical communications area following the progress of EDFA. Its appearance makes all complex optical networks possible.
光纤光栅作为光通信继掺铒光纤放大器之后的又一次突破，它的出现使许多复杂的全光网络通信成为了可能。
Besides multistage EDFA making the bandwidth reduced and noise increased, the material dispersion of optical fibers is also an important factor to affect WDM systems.
除了多级光纤放大器(EDFA)使带宽减小，噪声增大，光纤的材料色散也是对WDM系统影响的重要因素。
The relationship between the temperature dependence of Erbium-doped Fiber Amplifier(EDFA) gain and emission and absorption cross-section of Erbium fiber is analyzed theoretically.
从理论上分析了掺铒光纤放大器（EDFA）增益的温度特性与铒光纤发射截面和吸收截面的关系，并通过实验研究了其增益随温度的变化关系。
The implement applications of erbium doped fiber amplifier (EDFA) and fiber Raman amplifier (FRA) make the launching power in optical fiber communications systems increased significantly.
掺铒光纤放大器(EDFA)和拉曼放大器(FRA)的使用，使得光纤通信系统中的入纤功率有了很大的提高。
The model of EDFA that has been made is modified by considering the base loss of erbium-doped fiber and ase. The rate equations and propagation equations that have been modified are given.
本文所建立的EDFA的理论模型考虑了ASE和光纤的本征衰耗，修改了速率方程和传输方程。
For obtaining a pulse series with a small amplitude ripple, an Erbium-doped Fiber Amplifier (EDFA) must be added into the primary experiment setup to enhance injection-modulation signal power.
为了获得振幅均衡的有理数谐波锁模脉冲，必须在原有的实验装置中添加一个掺铒光纤放大器(EDFA)以提高注入调制光信号功率。
With the WDM (wavelength Division Multiplexing) technology based on EDFA (Erbium Doped fiber Amplifier) developing, it is possible to use multiple wavelengths to transmit over the same optical fiber.
基于掺铒光纤放大器(EDFA)的波分复用技术(WDM)的出现，使得在同一根光纤中能传输多个波长的光波信号。
This paper summarizes the general principle and technical problems in optical fibre amplifier. The principle characteristics and functions of EDFA, which are commonly used in monitoring are described.
总结了光放大器的一般原理和技术难点，分类评述了常用的EDFA监控方案的工作原理、特点和性能。
This paper summarizes the general principle and technical problems in optical fibre amplifier. The principle characteristics and functions of EDFA, which are commonly used in monitoring are described.
总结了光放大器的一般原理和技术难点，分类评述了常用的EDFA监控方案的工作原理、特点和性能。
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