Research progress on the high power flowing-gas circulation diode-pumped alkali vapor laser (<i>Invited</i>)

Yanhui Ji; Yang He; Haohua Wan; Junjie Sun; Fei Chen

doi:10.3788/IRLA20201080

Infrared and Laser Engineering, Volume. 49, Issue 12, 20201080(2020)

Research progress on the high power flowing-gas circulation diode-pumped alkali vapor laser (Invited)

Yanhui Ji¹, Yang He², Haohua Wan¹, Junjie Sun², and Fei Chen²

¹State Key Laboratory of Laser Interaction with Matter, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China

²State Key Laboratory of Laser Interaction with Matter, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China

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Figures & Tables(15)

Fig. 1. [in Chinese]

Fig. 2. [in Chinese]

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Table 1.
Reference data for different alkali lasers
碱金属原子的相关参数
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Table 1.
Reference data for different alkali lasers
碱金属原子的相关参数
Atom Pump wavelength/nm Lasing wavelength/nm ΔE/cm⁻¹ Quantum efficiency （E_D1/E_D2）
K 766.70 770.11 57.7 0.44%
Rb 780.25 794.98 237.5 1.9%
Cs 852.35 894.59 554.1 4.7%

Table 2.
Barmashenko's group on theoretical study of flowing alkali metal vapor lasers
Barmashenko课题组关于流动碱金属蒸汽激光器理论研究

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Table 2.
Barmashenko's group on theoretical study of flowing alkali metal vapor lasers
Barmashenko课题组关于流动碱金属蒸汽激光器理论研究

时间	研究者	技术路线	结论分析
2013年	Barmashenko	利用简化的半解析模型，模拟激光流动以及激光输出，研究气体流动对激光性能的影响^[31-32]。	在高泵浦功率条件下，适当流速可缓解温度的升高；并且流速较大时，高能态激发以及电离产生较小影响。（见图5）
2013年	Barmashenko	检验使用高摩尔热容和大弛豫速率常数的缓冲气体对循环流动型DPAL输出功率的影响^[31-32]。	相比于乙烷（C₂H₆），用丙烷（C₃H₈）作为缓冲气体可实现更高功率激光输出。
2014年	Waichman	利用3D-CFD模型，分析垂直于泵浦和激光的横向气体流动方式对激光性能影响^[44]。	发现横向流动方式可明显改善光束质量。使高泵浦功率下的输出功率提高30%。
2017年	Eyal Yacoby	利用3D-CFD动力学模型对不同泵浦方式的流动K蒸汽 DPAL（K-DPAL）性能以及光束质量进行分析^[45-46]。	输出功率几乎不受泵浦方式的影响，但是输出激光光束的空间强度分布取决于泵浦方式。

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Yanhui Ji, Yang He, Haohua Wan, Junjie Sun, Fei Chen. Research progress on the high power flowing-gas circulation diode-pumped alkali vapor laser (Invited)[J]. Infrared and Laser Engineering, 2020, 49(12): 20201080

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Paper Information

Category: Advanced Laser Technology

Received: Oct. 18, 2020

Accepted: --

Published Online: Jan. 14, 2021

The Author Email:

DOI:10.3788/IRLA20201080

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Reference data for different alkali lasers碱金属原子的相关参数

Table 1. Reference data for different alkali lasers碱金属原子的相关参数

Table 2. Barmashenko's group on theoretical study of flowing alkali metal vapor lasersBarmashenko课题组关于流动碱金属蒸汽激光器理论研究

Table 2. Barmashenko's group on theoretical study of flowing alkali metal vapor lasersBarmashenko课题组关于流动碱金属蒸汽激光器理论研究

Table 1.
Reference data for different alkali lasers
碱金属原子的相关参数

Table 1.
Reference data for different alkali lasers
碱金属原子的相关参数

Table 2.
Barmashenko's group on theoretical study of flowing alkali metal vapor lasers
Barmashenko课题组关于流动碱金属蒸汽激光器理论研究

Table 2.
Barmashenko's group on theoretical study of flowing alkali metal vapor lasers
Barmashenko课题组关于流动碱金属蒸汽激光器理论研究