基于模式选择耦合器的柱矢量光脉冲光纤激光器
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Cylindrical vertex beam pulse fiber laser based on mode selective coupler
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    摘要:

    柱矢量光具有轴对称的偏振及强度分布特点,强聚焦条件下会形成一个独特且较强的局部纵向电场,在工业加工、材料处理、粒子操控、显微成像等领域具有独特的应用优势。模式选择耦合器是实现全光纤模式转换的关键器件,具有结构简单、体积小、高转换效率、高模式纯度和优良光纤兼容性等优点,是目前最有希望获得稳定可靠柱矢量全光纤激光输出的一套技术方案。本文基于模式选择耦合器搭建柱矢量窄线宽全光纤激光器获得了高模式纯度、高稳定性的LP11模输出。

    Abstract:

    Cylindrical vector beam has the characteristics of axially symmetric polarization and intensity distribution.Under strong focusing conditions,it will form a unique and strong local longitudinal electric field,so has unique application advantages in industrial processing,material handling,particle manipulation,optical microscopy and other fields.The mode selection coupler is the key device to realize the all fiber mode conversion.It has the advantages of simple structure,small size,high conversion efficiency,high mode purity and excellent fiber compatibility.Therefore,it can be said that the mode selective coupler is currently the most promising technical solution to obtain stable and reliable all fiber laser with cylindrical vortex beam output.Finally,the LP11 mode output with high mode purity and high stability is obtained experimentally by building a narrow linewidth all fiber laser with cylindrical vortex beam output.

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牛峻峰,裴思琪,杨博义.基于模式选择耦合器的柱矢量光脉冲光纤激光器[J].激光与红外,2022,52(7):1011~1016
NIU Jun-feng, PEI Si-qi, YANG Bo-yi. Cylindrical vertex beam pulse fiber laser based on mode selective coupler[J]. LASER & INFRARED,2022,52(7):1011~1016

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  • 最后修改日期:2021-09-15
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  • 在线发布日期: 2022-07-12