Pump Configuration and Length Optimization of Erbium-doped Fiber Amplifier for Low Noise and High Power Operation

M. Suyama, I. Yokota, Shigeki Watanabe, H. Kuwahara
{"title":"Pump Configuration and Length Optimization of Erbium-doped Fiber Amplifier for Low Noise and High Power Operation","authors":"M. Suyama, I. Yokota, Shigeki Watanabe, H. Kuwahara","doi":"10.1364/oaa.1991.the4","DOIUrl":null,"url":null,"abstract":"In a ultra-long system with cascaded erbium-doped fiber amplifiers(1) (EDFAs), in order to keep a signal-to-noise ratio (SNR) as high as possible, EDFA(2) having high output power and low noise is highly required as a post-amplifier or as an in-line-amplifier. Such an EDFA is also important for optical pre-amplifiers with large dynamic ranges. Although Way et al. reported a low noise figure (NF) in a saturation region under the condition of sufficiently high pump power(3), the relationship between lowering the NF and optimizing the gain of EDFA was not clear. In this paper, we report that an EDFA having both a high output power (+15dBm) and a low NF (6dB) can actually be realized using 1.48μm pump LDs when the EDFA length is optimized to give a maximum gain for large signal power. In addition, we also show that there is a remarkable difference between forward and backward pump in terms of NF characteristics of EDFA in a deep saturation.","PeriodicalId":308628,"journal":{"name":"Optical Amplifiers and Their Applications","volume":"253 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1992-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optical Amplifiers and Their Applications","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1364/oaa.1991.the4","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

In a ultra-long system with cascaded erbium-doped fiber amplifiers(1) (EDFAs), in order to keep a signal-to-noise ratio (SNR) as high as possible, EDFA(2) having high output power and low noise is highly required as a post-amplifier or as an in-line-amplifier. Such an EDFA is also important for optical pre-amplifiers with large dynamic ranges. Although Way et al. reported a low noise figure (NF) in a saturation region under the condition of sufficiently high pump power(3), the relationship between lowering the NF and optimizing the gain of EDFA was not clear. In this paper, we report that an EDFA having both a high output power (+15dBm) and a low NF (6dB) can actually be realized using 1.48μm pump LDs when the EDFA length is optimized to give a maximum gain for large signal power. In addition, we also show that there is a remarkable difference between forward and backward pump in terms of NF characteristics of EDFA in a deep saturation.
低噪声高功率掺铒光纤放大器泵浦结构及长度优化
在级联掺铒光纤放大器(1)的超长系统中,为了保持尽可能高的信噪比(SNR),高输出功率和低噪声的掺铒光纤放大器(2)作为后置放大器或线内放大器是非常必要的。这种EDFA对于具有大动态范围的光学前置放大器也很重要。虽然Way等人报道了在足够高的泵功率条件下,饱和区域的低噪声系数(NF)(3),但降低NF与优化EDFA增益之间的关系尚不清楚。在本文中,我们报告了一个具有高输出功率(+15dBm)和低NF (6dB)的EDFA实际上可以使用1.48μm泵浦ld实现,当EDFA长度优化为提供大信号功率的最大增益时。此外,我们还表明,就深饱和EDFA的NF特性而言,向前泵和向后泵之间存在显着差异。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信