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| 超长距离通信系统中远程泵浦的优化设计 | |
| 引用本文： | 蒋群,夏晓舟,章青.超长距离通信系统中远程泵浦的优化设计[J].光通信研究,2010(1). |
| 作者姓名： | 蒋群 夏晓舟 章青 |
| 作者单位： | 1. 河海大学,工程力学系,江苏,南京,210098;江西科技师范学院,通信电子学院,江西,南昌,330013 2. 河海大学,工程力学系,江苏,南京,210098;广东工业大学,建设学院,广东,广州,510006 3. 河海大学,工程力学系,江苏,南京,210098 |
| 基金项目： | 国家自然科学基金重点资助项目 |
| 摘 要： | 文章介绍了一种用于密集波分复用(DWDM)超长距离通信系统中远程泵浦的传输设计方案.为了得到较大的增益与较小的噪声指数,我们选择了数值孔径小、掺杂浓度低的掺铒光纤,同时光路中还采用了对信号光全透、对泵浦光全反的二色镜来提高泵浦光的利用率.通过优化的光路设计,我们得到了增益＞17 dB、噪声指数＜7 dB的远程泵浦放大器. |
| 关 键 词： | 远程泵浦系统 掺铒光纤 噪声指数 泵浦放大器 |
Optimization design of remote pumping in ultra-long-haul communication systems |
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| Jiang Qun,Xia Xiaozhou,Zhang Qing.Optimization design of remote pumping in ultra-long-haul communication systems[J].Study on Optical Communications,2010(1). | |
| Authors: | Jiang Qun Xia Xiaozhou Zhang Qing |
| Abstract: | This paper introduces a transmission design scheme for the remote pumping in DWDM ultra-long-haul communication systems. In order to obtain high gain and low noise figure,we adopt Er-doped fibers,which are characteristic of small numerical aperture and low doping concentration,and use a dichroscope that reflect all pumping light and transmits all signal light to increase the utilization ratio of the pumped light. Thanks to the optimized lightpath design,we obtain a remote pumping amplifier with a gain of >17 dB and noise figure of ＜7 dB. |
| Keywords: | remote pumping system Er-doped fiber noise figure pumping amplifier |
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