Study on energy field regulation of multiple optical parametric oscillator based on electro-optic polarization transform and difference frequency generation

2019 International Conference on Advanced Electronic Materials, Computers and Materials Engineering

无线电电子学;计算机科学;材料科学

Liu, Hang^1^2 ; Wang, Yuheng^1 ; Li, Lujie^2 ; Yu, Yongji^1 ; Jin, Guangyong^1

Jilin Key Laboratory of Solid Laser Technology and Application, School of Science, Changchun University of Science and Technology, Changchun

130022, China^1

Changchun China Optical Science and Technology Museum, Changchun

130117, China^2

关键词: Basic frequencies;    Difference frequency;    Difference-frequency generation;    Dynamic compensation;    Electro-optic polarization;    Inhibition methods;    Polarization mode conversion;    Power densities;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/563/3/032006/pdf
DOI  :  10.1088/1757-899X/563/3/032006

来源: IOP

【 摘 要 】

In this paper, an active regulation method of back conversion for multiple optical parametric oscillator energy field based on electro-optical polarization mode conversion and difference frequency generation is proposed. The strong gain parametric light is converted into the weak gain parametric light to ensure that the parametric light energy in the oscillating cavity is in equilibrium and the back conversion effect is suppressed. The active regulation method is analyzed by means of polarization coupled and difference frequency conversion, and it is concluded that the intensity of electric field loaded on crystal and the power density of difference frequency pump determine the parametric conversion efficiency. Compared with the passive inhibition method, the active regulation method has the characteristics of strong dynamic compensation ability with wide range of basic frequency optical pumping energy, and can greatly improve the conversion efficiency and peak power.