The typical erbium - doped fiber gain spectrum is a combination of a high - intensity region and a flat part spectrum , and the power difference has limited the bandwidth of edsfs 典型的掺铒光纤增益谱线由一个谱峰和后面的谱肩组成,它们之间的功率差异造成了对光纤陀螺可应用的edsfs带宽和平坦度的限制。
The technology of wdm combined with edfa can take fully advantage of capability of fibers , being a premium method of realizing high - capacity , long - haul , high - speed communications 波分复用( wdm )和掺铒光纤放大器( edfa )的结合应用是充分挖掘光纤带宽能力，实现大容量、高速率、长距离通信的最佳手段。
The technology of wdm combined with edfa can take fully advantage of capability of fibers , being a premium method of realizing high - capacity , long - haul , high - speed communications 波分复用( wdm )和掺铒光纤放大器( edfa )的结合应用是充分挖掘光纤带宽能力，实现大容量、高速率、长距离通信的最佳手段。
The erbium doped fiber amplifier has been tested in the direct amplifier station of institute of fujian telecommunications for the first time in china . the experiment was very successful 并将研制成功的掺铒光纤放大器首次运用到合作单位福建邮电科学研究所的光纤直放机上进行线路传输实验，实验十分成功。
To be recycled , the backward ase was routed to the input of edf by an optical circulator . this method is much use for reference to enhance the gain of l - edfa in broadband link 这种利用光环形器将后向的ase再引入铒光纤的前端,重复利用ase的方法对超宽带连接中提高l -波段掺铒光纤放大器的增益也有借鉴价值。
Upper the threshold , it became fiber ring laser . in this dissertation , the polymorphic characteristics of tunable er ' + - doped fiber ring resonators below , near and upper tllresllold are chiefly analyzed 本文主要对可凋谐掺铒光纤环形腔在阈值以下、阈值附近以及阈值以上多种工作状态时的特性进行了实验研究。
We outlined the history of optic amplifiers , analysed the advantages and disadvantages of edfa and fra , and the application area of rare earth doped tellurite glass amplification fiber 摘要文章介绍了光纤放大的研究历史，分析了掺铒光纤放大器( edfa )和光纤拉曼放大器的优势和劣势，指明了稀土掺杂碲酸盐放大光纤的应用领城。
It was in this self - q - switching project that a common single mode fiber was connected to er - doped fiber in the fiber laser , in which the sbs process of single mode fiber was used to make the q modulation 本文方案为在掺铒光纤激光器中的掺铒光纤后接一普通通信用单模光纤,利用单模光纤的受激布里渊散射效应对光纤激光器实现自调q 。
Actively mode - locked erbium - doped fiber lasers ( edfls ) with a high repetition rate and multi - wavelength fiber lasers are attractive optical sources in future ultra - high speed and all - optical communication systems 多波长掺铒光纤激光器( mw - edfls )可以同时为多个波长信道提供所需光源,被认为是未来长距离大容量的光纤通信系统的理想光源。
In the design of optically amplified links for wdm applications , in which the number and power level of the input channels may vary randomly in time as in a network scenario , it is thus essential to stablize the amplifier gain profile 但其增益谱并不平坦，这就要求用于波分复用系统的掺铒光纤放大器要有合适的增益、噪声系数和输出功率，还要求增益的动态平衡。
