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首页> 外文期刊>Optical fiber technology >Bend resistant large mode area fiber with step-index core and single trench
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Bend resistant large mode area fiber with step-index core and single trench

机译：弯曲耐大型模式纤维，具有阶梯指数核心和单沟槽

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摘要

A novel bend resistant large mode area fiber with step-index core and single trench in the cladding is proposed. Numerical results demonstrate that the largest effective mode area reaches up to 2460 mu m(2) at the wavelength of 2 mu m when the bend radius is only 10 cm. To achieve the better performance of single mode, the loss ratio of the lowest loss of higher order mode to the highest loss of fundamental mode can reach up to 886 with a fundamental mode bend loss lower than 0.0083 dB/m through optimizing structure parameters. The circular symmetry of fiber structure makes it insensitive to the bending direction. Furthermore, this fiber structure can be also used to develop bend resistant large mode area fiber with high performance at the wavelengths of 1.06 mu m and 1.55 mu m. Due to large mode area, good single mode properties, small bend radius and insensitivity to bend direction, this fiber has the potential application for compact high power fiber lasers.
机译：提出了一种具有阶梯指数芯和包层中的单沟槽的新型弯曲大型区域光纤。数值结果表明，当弯曲半径仅为10cm时，最大有效模式区域在2μm的波长下达到高达2460μm（2）。为了实现单模的更好性能，高阶模式的最低损耗与基本模式最高损耗的损耗比率可以达到高达886，通过优化结构参数低于0.0083 dB / m的基本模式弯曲损耗。纤维结构的圆形对称使其对弯曲方向不敏感。此外，该纤维结构也可用于在波长为1.06μm和1.55μm的波长下开发弯曲耐大型区域光纤。由于大模式区域，良好的单模性能，小弯曲半径和弯曲方向的不敏感，该光纤具有紧凑型大功率光纤激光器的潜在应用。

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  • 来源
    《Optical fiber technology》 |2019年第3期|15-21|共7页
  • 作者

    Xing Zhen; Wang Xin; Lou Shuqin; Zhang Wan; Tang ZiJuan; Yan Shibo;

  • 作者单位

    Beijing Jiaotong Univ Sch Elect & Informat Engn Beijing 100044 Peoples R China;

    Beijing Jiaotong Univ Sch Elect & Informat Engn Beijing 100044 Peoples R China;

    Beijing Jiaotong Univ Sch Elect & Informat Engn Beijing 100044 Peoples R China;

    Beijing Jiaotong Univ Sch Elect & Informat Engn Beijing 100044 Peoples R China;

    Beijing Jiaotong Univ Sch Elect & Informat Engn Beijing 100044 Peoples R China;

    Beijing Jiaotong Univ Sch Elect & Informat Engn Beijing 100044 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Large mode area fibers; Bend resistant; Single mode; Loss ratio;

    机译：大型模式纤维;弯曲;单模;损失比率;

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