计算物理 ›› 1998, Vol. 15 ›› Issue (3): 308-314.

• 论文 • 上一篇    下一篇

孔耦合自由电子激光振荡器的数值模拟方法

王元璋   

  1. 北京应用物理与计算数学研究所 100088
  • 收稿日期:1996-12-27 修回日期:1997-08-11 出版日期:1998-05-25 发布日期:1998-05-25
  • 作者简介:王元璋,男,54,研究员,北京8009信箱

THE NUMERICAL METHOD OF SIMULATING THE HOLE-COUPLING FEL OSCILLATOR

Wang Yuanzhang   

  1. The Institute of Applied Physics and Computational Mathematics, Beijing 100088
  • Received:1996-12-27 Revised:1997-08-11 Online:1998-05-25 Published:1998-05-25

摘要: 针对孔耦合波导自由电子激光振荡器腔内光场横向特性,应用有限元法于慢变光场方程,并对输出腔镜上孔耦合过程加以较准确的描述,而后通过对数值结果的分析比较,说明这一模拟方法较好地描述了孔耦合引起的腔内光场横向结构的变化发展特性,改善了模拟结果。

关键词: 孔耦合, 自由电子激光振荡器, 有限元法

Abstract: Since the presence of a out coupling hole alters the transverse structure of the intra cavity light in a FEL oscillator,the finite element method is used to the optical field equations and a good proximation is made for the out-coupling process in the mirror,and then some numerical results are given.It is shown that the features of the transverse structure of the intra-cavity field are well described and the numerical results are significantly improved.

Key words: hole-coupling, FEL oscillator, finite element method

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