中国物理B ›› 2019, Vol. 28 ›› Issue (2): 24210-024210.doi: 10.1088/1674-1056/28/2/024210

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Analysis of CV mode selected resonator based on vectorial eigenvector method

You-You Hu(胡友友), Jian-Tai Dou(窦健泰), Bo-Wei Luo(罗博伟), Chang-Yu He(贺昌玉)   

  1. 1 Department of Physics, College of Science, Jiangsu University of Science and Technology, Zhenjiang 212003, China;
    2 School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
  • 收稿日期:2018-10-18 修回日期:2018-11-19 出版日期:2019-02-05 发布日期:2019-02-05
  • 通讯作者: Chang-Yu He E-mail:cyhe@hust.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 61308045) and the National Science and Technology Cooperation Project (Grant No. 2014DFR10870).

Analysis of CV mode selected resonator based on vectorial eigenvector method

You-You Hu(胡友友)1, Jian-Tai Dou(窦健泰)1, Bo-Wei Luo(罗博伟)2, Chang-Yu He(贺昌玉)2   

  1. 1 Department of Physics, College of Science, Jiangsu University of Science and Technology, Zhenjiang 212003, China;
    2 School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
  • Received:2018-10-18 Revised:2018-11-19 Online:2019-02-05 Published:2019-02-05
  • Contact: Chang-Yu He E-mail:cyhe@hust.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 61308045) and the National Science and Technology Cooperation Project (Grant No. 2014DFR10870).

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摘要： The vectorial eigenvector method was applied to compute the cylindrical vector (CV) modes of polarization-dependent resonators and multiple modes in the CV mode selected resonator were tracked. Then, the mode characteristics of CV mode selected resonator depending on the Fresnel number, geometry parameters, and polarization parameters were simulated. When the difference in reflection coefficient between radial and azimuthal polarization is greater than 0.021 for spherical semi-confocal cavity, the radially polarized TM01* mode most probably appears in the resonator due to its lowest loss, which is consistent with an azimuthal polarization-selective resonant cavity. Moreover, the appropriate phase shift factor contributes to suppress non-rotationally symmetrical modes, which promotes the selection of CV modes. The Fresnel number between 2 and 2.5 are the appropriate range of values when the value of geometry parameters g2 is 0.5, both of which decide the effective Fresnel number.

关键词: laser resonators, polarization, polarization-selective devices, lasers and laser optics

Abstract: The vectorial eigenvector method was applied to compute the cylindrical vector (CV) modes of polarization-dependent resonators and multiple modes in the CV mode selected resonator were tracked. Then, the mode characteristics of CV mode selected resonator depending on the Fresnel number, geometry parameters, and polarization parameters were simulated. When the difference in reflection coefficient between radial and azimuthal polarization is greater than 0.021 for spherical semi-confocal cavity, the radially polarized TM01* mode most probably appears in the resonator due to its lowest loss, which is consistent with an azimuthal polarization-selective resonant cavity. Moreover, the appropriate phase shift factor contributes to suppress non-rotationally symmetrical modes, which promotes the selection of CV modes. The Fresnel number between 2 and 2.5 are the appropriate range of values when the value of geometry parameters g2 is 0.5, both of which decide the effective Fresnel number.

Key words: laser resonators, polarization, polarization-selective devices, lasers and laser optics

中图分类号:  (Resonators, cavities, amplifiers, arrays, and rings)

  • 42.60.Da
42.25.Ja (Polarization)