首页|Amplification of high-order azimuthal mode based on a ring-core Yb-doped fiber
Amplification of high-order azimuthal mode based on a ring-core Yb-doped fiber
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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(LPii,LP21,LP31,LP41,LP51)were studied comprehensively.A more than 8 dB gain is obtained for each signal mode with 5 dBm input power,and the associated differential modal gain between all modes is less than 1 dB.The intensity pro-files of all modes are stable and well preserved during the process of amplification.
OU Nanxian、Li Wei、QIU Runzhou、ZHANG Bin、GAO Shecheng、LIU Weiping
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Department of Electronic Engineering,College of Information Science and Technology,Jinan University,Guang-zhou 510632,China
Guangdong Provincial Key Laboratory of Optoelectronic Information Processing Chips and Systems and School of Electronics and Information Technology,Sun Yat-sen University,Guangzhou 510275,China
National Key Technologies Research and Development Program of China国家自然科学基金国家自然科学基金Guangdong Basic and Applied Basic Research Foundation
NETL
NSTL
万方数据
维普
