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首页> 外文期刊>Optics Letters >115 W fiber laser with an all solid-structure and a large-mode-area multicore fiber
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115 W fiber laser with an all solid-structure and a large-mode-area multicore fiber

机译：115 W光纤激光器采用全结构和大型多芯光纤

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摘要

We investigate mode-area scaling by means of supermode operation in an all-solid multicore fiber. To obtain a large-mode area (LMA), we designed and fabricated an active double-clad multicore fiber, where each ytterbium-doped core is 19 mu m in diameter and has a numerical aperture of 0.067, comparable to the core of the largest available commercial LMA fibers. The six large cores are stacked tightly in a ring structure to enable phase locking of the core fields and supermode operation. The fiber laser performance was investigated in a linear laser cavity with an external Talbot resonator for mode selection. The highest output power achieved was 115 W with an overall 61% slope efficiency corresponding to the pump power. The measured M-2 was 1.43 for the central lobe with nearly 70% of the total power. (C) 2018 Optical Society of America
机译：我们通过全实体多核光纤中的超导操作调查模式区域缩放。 为了获得大型区域（LMA），我们设计并制造了一种有源双包层多芯纤维，其中每个YTterbium掺杂的芯直径为19μm，具有0.067的数值孔径，与最大核心相当 可用的商业LMA纤维。 六个大型芯紧紧地堆叠在环形结构中，以使核心字段和超导操作的相位锁定。 用外部Talbot谐振器在线性激光腔中研究光纤激光器性能以进行模式选择。 实现的最高输出功率为115W，整体61％的斜率效率对应于泵功率。 测量的M-2为中央叶为1.43，占总功率的近70％。 （c）2018年光学学会

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  • 来源
    《Optics Letters》 |2018年第14期|共4页
  • 作者

    Ji Junhua; Raghuraman Sidharthan; Huang Xiaosheng; Zang Jichao; Ho Daryl; Zhou Yanyan; Benudiz Yehuda; Ben Ami Udi; Ishaaya Amiel A.; Yoo Seongwoo;

  • 作者单位

    Nanyang Technol Univ Photon Inst Sch Elect &

    Elect Engn Ctr Opt Fibre Technol 50 Nanyang Ave Singapore 639798 Singapore;

    Nanyang Technol Univ Photon Inst Sch Elect &

    Elect Engn Ctr Opt Fibre Technol 50 Nanyang Ave Singapore 639798 Singapore;

    Nanyang Technol Univ Photon Inst Sch Elect &

    Elect Engn Ctr Opt Fibre Technol 50 Nanyang Ave Singapore 639798 Singapore;

    Nanyang Technol Univ Photon Inst Sch Elect &

    Elect Engn Ctr Opt Fibre Technol 50 Nanyang Ave Singapore 639798 Singapore;

    Nanyang Technol Univ Photon Inst Sch Elect &

    Elect Engn Ctr Opt Fibre Technol 50 Nanyang Ave Singapore 639798 Singapore;

    Nanyang Technol Univ Photon Inst Sch Elect &

    Elect Engn Ctr Opt Fibre Technol 50 Nanyang Ave Singapore 639798 Singapore;

    Ben Gurion Univ Negev Dept Elect &

    Comp Engn IL-84105 Beer Sheva Israel;

    Ben Gurion Univ Negev Dept Elect &

    Comp Engn IL-84105 Beer Sheva Israel;

    Ben Gurion Univ Negev Dept Elect &

    Comp Engn IL-84105 Beer Sheva Israel;

    Nanyang Technol Univ Photon Inst Sch Elect &

    Elect Engn Ctr Opt Fibre Technol 50 Nanyang Ave Singapore 639798 Singapore;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
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