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

Dongya Chu; Hui Wang; Honghong Wu; Bowu Liu; Menjiya Tian

doi:10.1364/AO.495000

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

Dongya Chu
, Hui Wang^*
, Honghong Wu
, Bowu Liu
, Menjiya Tian

^*Corresponding author for this work

Research institute of Aero-Engine

Tsinghua University
China Academy of Engineering Physics

Research output: Contribution to journal › Article › peer-review

Abstract

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 µrad and 36.5–61.9 µrad, respectively.

Original language	English
Pages (from-to)	6787-6793
Number of pages	7
Journal	Applied Optics
Volume	62
Issue number	25
DOIs	https://doi.org/10.1364/AO.495000
State	Published - 1 Sep 2023

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title = "Divergent beam-based method for measuring the detuning angles of a laser frequency converter",

abstract = "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 µrad and 36.5–61.9 µrad, respectively.",

author = "Dongya Chu and Hui Wang and Honghong Wu and Bowu Liu and Menjiya Tian",

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T1 - Divergent beam-based method for measuring the detuning angles of a laser frequency converter

AU - Chu, Dongya

AU - Wang, Hui

AU - Wu, Honghong

AU - Liu, Bowu

AU - Tian, Menjiya

PY - 2023/9/1

Y1 - 2023/9/1

N2 - 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 µrad and 36.5–61.9 µrad, respectively.

AB - 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 µrad and 36.5–61.9 µrad, respectively.

UR - https://www.scopus.com/pages/publications/85171231967

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DO - 10.1364/AO.495000

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VL - 62

SP - 6787

EP - 6793

JO - Applied Optics

JF - Applied Optics

IS - 25

ER -

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

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