射频激励板条波导CO2激光器远场空间压缩单峰输出模式的研究

焦文涛; 辛建国

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射频激励板条波导CO₂激光器远场空间压缩单峰输出模式的研究

论文 | 更新时间：2020-08-12

- 射频激励板条波导CO₂激光器远场空间压缩单峰输出模式的研究
- RF-excited slab waveguide CO₂ laser with the far field intensity distribution of a single suppressed peak
- 光学精密工程 2000年8卷第1期页码：19-22
- 作者机构：
  
  北京理工大学光电工程系北京,100081
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： TN248.22
- 收稿日期：1999-07-20，
  
  修回日期：1999-09-02，
  
  网络出版日期：2000-02-15，
  
  纸质出版日期：2000-02-15
- 稿件说明：
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焦文涛, 辛建国. 射频激励板条波导CO2激光器远场空间压缩单峰输出模式的研究[J]. 光学精密工程, 2000,(1): 19-22

JIAO Wen-tao, XIN Jian-guo . RF-excited slab waveguide CO2 laser with the far field intensity distribution of a single suppressed peak[J]. Editorial Office of Optics and Precision Engineering, 2000,(1): 19-22
焦文涛, 辛建国. 射频激励板条波导CO2激光器远场空间压缩单峰输出模式的研究[J]. 光学精密工程, 2000,(1): 19-22 DOI：

JIAO Wen-tao, XIN Jian-guo . RF-excited slab waveguide CO2 laser with the far field intensity distribution of a single suppressed peak[J]. Editorial Office of Optics and Precision Engineering, 2000,(1): 19-22 DOI：

摘要

从研究射频激励板条波导CO

激光器远场压窄单峰的理论成因出发

根据实验现象

通过理论分析和数值计算得出宽波导平平腔自再现模

这种自再现模式与无波导壁时不同

其近场具有复杂分布

理论分析表明求出这种模式的远场是压窄单峰强度分布

实验结果证实了这种模式的存在.

Abstract

This paper theoretically studied the properties of the mode structure and modes evolution of a slab waveguide CO

laser with a far field intensity distribution of a single spatially suppressed peak. To well explain the experimental result

physical model based on the Diffractive Optics was proposed in this paper. A self-consistent mode equation under condition of waveguide wall was set up. By the use of the numerical method

the self-consistent mode was solved under the condition of waveguide wall. The theoretical results show that the farfield of the mode is single peak while its nearfield is a multiple spots. These theoretical results well agree with the obtained experimental result.

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