Amplification of high-order azimuthal mode based on a ring-core Yb-doped fiber

被引：0
|
作者：
OU Nanxian [1 ]
LI Wei [2 ]
QIU Runzhou [1 ]
ZHANG Bin [3 ]
GAO Shecheng [1 ]
LIU Weiping [1 ]
机构：
[1] Department of Electronic Engineering, College of Information Science and Technology, Jinan University
[2] Fiberhome Telecommunication Technologies Co., Ltd.
[3] Guangdong Provincial Key Laboratory of Optoelectronic Information Processing Chips and Systems and School of Electronics and Information Technology, Sun Yat-sen University
来源：
Optoelectronics Letters | 2022年 / 18卷 / 04期
基金：
中国国家自然科学基金;
关键词：
D O I：
暂无
中图分类号：
TN253 [光纤元件]; TN722 [放大器];
学科分类号：
0702 ; 070207 ; 080902 ;
摘要：
In order to increase the number of amplified azimuthal modes in Yb-doped fiber(YDF), a multiple azimuthal modes amplifier based on a ring-core Yb-doped fiber(RC-YDF) was proposed and demonstrated. A home-made RC-YDF which can support 6 azimuthal mode groups was employed to amplify the signal mode at 1 064 nm, using a core pump scheme. The amplification characteristics of 5 high-order azimuthal linear polarization(HA-LP) mode groups(LP11, LP21, LP31, LP41, LP51) were studied comprehensively. A more than 8 d B gain is obtained for each signal mode with 5 d Bm input power, and the associated differential modal gain between all modes is less than 1 d B. The intensity profiles of all modes are stable and well preserved during the process of amplification.
引用
收藏
页码：222 / 226
页数：5
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