Power scaling of end-pumped Nd:YLF lasers, modeling and experiments

被引：5
作者：
El-Agmy, R. M. [1 ]
Al-Hosiny, N. [2 ,3 ]
机构：
[1] Helwan Univ, Fac Sci Phys, Helwan 11792, Egypt
[2] Aljouf Univ, Dept Phys, Fac Sci, Sakkaka, Saudi Arabia
[3] Taif Univ, Dept Phys, Fac Sci, At Taif, Saudi Arabia
来源：
OPTIK | 2017年 / 140卷
关键词：
Solid state lasers; Thermally induced lens; Wavefront sensors; ND; YAG; BIREFRINGENCE; GAIN;
D O I：
10.1016/j.ijleo.2017.04.087
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Numerical modeling simulations are carried out to analyze and study the thermal effects in Nd:YLF laser crystals. The distributions of temperature and stress in the Nd:YLF laser rods are calculated with finite element (FE) simulations for different rod geometries and pump powers. The FE simulations that were carried out showed that using thinner Nd:YLF rod would lead to scale the power by 50% before the limits imposed by the thermally induced stress is reached. Also, we have investigated the generation of strong negative thermally induced lens for polarizations. The calculations of thermally induced lens in Nd:YLF laser rod is validated experimentally. Shack-Hartmann wavefront sensor was used for direct measurements of thermal lenses at different pump power. The obtained measurements were coinciding with the (FE) simulations. (C) 2017 Elsevier GmbH. All rights reserved.
引用
收藏
页码：584 / 591
页数：8
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