Home > Archive>Volume 18, Issue 4, 2022 >222-226. DOI:https://doi.org/10.1007/s11801-022-2032-7
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Amplification of high-order azimuthal mode based on a ring-core Yb-doped fiber
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1. Department of Electronic Engineering, College of Information Science and Technology, Jinan University, Guangzhou 510632, China;2. Fiberhome Telecommunication Technologies Co., Ltd., Wuhan 430074, China;3. 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

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    Abstract:

    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-orderazimuthal linear polarization (HA-LP) mode groups (LP11, 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 profiles of all modes are stable and well preserved during the process of amplification.

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OU Nanxian, LI Wei, QIU Runzhou, ZHANG Bin, GAO Shecheng, LIU Weiping. Amplification of high-order azimuthal mode based on a ring-core Yb-doped fiber[J]. Optoelectronics Letters,2022,18(4):222-226

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History
  • Received:March 04,2022
  • Revised:April 01,2022
  • Online: April 27,2022
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