Divergent beam-based method for measuring the detuning angles of a laser frequency converter

被引：0

作者：

Chu, Dongya ^{[1
]}

Wang, Hui ^{[2
]}

Wu, Honghong ^{[3
]}

Liu, Bowu ^{[1
]}

Tian, Menjiya ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Mech Engn, Beijing 100084, Peoples R China

[2] Beihang Univ, Res Inst Aeroengine, Beijing 102206, Peoples R China

[3] China Acad Engn Phys, Laser Fus Res Ctr, Mianyang 621900, Peoples R China

来源：

APPLIED OPTICS | 2023年 / 62卷 / 25期

基金：

中国国家自然科学基金;

关键词：

PERFORMANCE; CRYSTAL; DESIGN;

D O I：

10.1364/AO.495000

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a method to obtain the detuning angles of a frequency converter by tripling the frequency of a divergent Gaussian beam. The frequency tripling process of the divergent beam was first simulated. It is found that the detuning angles of the frequency converter are linearly related to the position of the maximum light intensity point of the third harmonic laser. The corresponding experiment was conducted, and the results agreed well with the theoretical analysis. This method measures the detuning angles of the frequency converter in only one measurement and within 1 min. The detuning angle measurement errors of KDP and KD*P crystals are less than 10 grad and 36.5- 61.9 grad, respectively. (c) 2023 Optica Publishing Group

引用

页码：6787 / 6793

页数：7

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