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空间激光与单模光纤和光子晶体光纤的耦合效率

陈雪坤 张璐 吴志勇

陈雪坤, 张璐, 吴志勇. 空间激光与单模光纤和光子晶体光纤的耦合效率[J]. 中国光学(中英文), 2013, 6(2): 208-215. doi: 10.3788/CO.20130602.0208
引用本文: 陈雪坤, 张璐, 吴志勇. 空间激光与单模光纤和光子晶体光纤的耦合效率[J]. 中国光学(中英文), 2013, 6(2): 208-215. doi: 10.3788/CO.20130602.0208
CHEN Xue-kun, ZHANG Lu, WU Zhi-yong. Coupling efficiency of free-space laser coupling into single mode fiber and photonic crystal fiber[J]. Chinese Optics, 2013, 6(2): 208-215. doi: 10.3788/CO.20130602.0208
Citation: CHEN Xue-kun, ZHANG Lu, WU Zhi-yong. Coupling efficiency of free-space laser coupling into single mode fiber and photonic crystal fiber[J]. Chinese Optics, 2013, 6(2): 208-215. doi: 10.3788/CO.20130602.0208

空间激光与单模光纤和光子晶体光纤的耦合效率

doi: 10.3788/CO.20130602.0208
基金项目: 

中科院长春光机所所内创新资助项目(No.Y10532B110)

详细信息
    通讯作者:

    吴志勇, E-mail:ziluit@163.com

  • 中图分类号: TN25;TN249

Coupling efficiency of free-space laser coupling into single mode fiber and photonic crystal fiber

More Information
    Corresponding author: WU Zhi-yong
  • 摘要: 为了设计最优光纤耦合系统,利用高斯模场近似单模阶跃光纤的模场和大模面积光子晶体光纤的模场,推导出了理想情况下空间激光与这两种光纤的耦合效率解析表达式以及光纤端面相对于耦合系统存在横向偏移和端面倾斜时的耦合效率解析表达式。基于上述理论表达式计算了空间激光与光纤的耦合效率,并通过实验验证了此理论表达式的有效性。理论计算和实验均证实了单模阶跃光纤对于横向偏移更敏感,当横向偏移量等于单模光纤的纤芯半径时所对应的耦合效率只有20.25%,为理论最大值的1/4;而大模面积光子晶体光纤对于端面倾斜更加敏感,当端面倾斜2时对应的耦合效率只有40.5%,为理论最大值的1/2。所提出理论表达式和实验方法完全可以为设计光纤耦合系统提供准确的参数。

     

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出版历程
  • 收稿日期:  2012-12-17
  • 修回日期:  2013-01-23
  • 刊出日期:  2013-04-10

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