Thermal dephasing in an enhanced cavity based high-power second harmonic generation

被引：3

作者：

Sabouri, Saeed Ghavami ^{[1
]}

Khorsandi, Alireza ^{[1
]}

机构：

[1] Univ Isfahan, Dept Phys, Esfahan 8174673441, Iran

来源：

APPLIED OPTICS | 2018年 / 57卷 / 30期

关键词：

ND-YAG LASER; CONTINUOUS-WAVE; EFFICIENCY; CRYSTAL; RADIATION; LINBO3; LIGHT; NM;

D O I：

10.1364/AO.57.009140

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on the performance of an enhanced-cavity (EC) designed for obtaining high-power and efficiency second-harmonic generation (SHG). This is performed by numerical simulation of SHG coupled equations in the presence of a thermal dephasing effect that is effectively intensified through embedding the periodically poled LiNbO3 crystal by an oven-surrounded scheme. It is found that by setting the PPLN temperature at an optimum value, adjusting the mirror reflectively, and pumping power at certain values, gaining SHG efficiency of more than 90% is possible. We further realized that by an ECSHG device SHG efficiency can be improved by about 15%-50%. Moreover, compared to a single-pass SHG scheme, the EC-based SHG device is shown to be a very promising candidate to reduce and suppress the effect of thermal dephasing on the stability and efficiency of SHG radiation. (C) 2018 Optical Society of America

引用

页码：9140 / 9147

页数：8

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