摘要
通过实验研究了不同切割方向Co^2+∶MgAl2O4的可饱和吸收特性。测量了[100]和[110]切割方向Co^2+∶MgAl2O4的各向异性透过率特性,测量结果表明,[100]和[110]切割晶体的透过率随入射光偏振方向呈周期性变化。采用[100]和[110]两种切割方向Co^2+∶MgAl2O4分别构成被动调Q激光器,并比较激光器的输出特性,结果表明,采用[110]切割的晶体有明显的优势,相比[100]切割晶体输出能量提高约8%,稳定性、光束质量、消光比均略有提高。
The saturable absorption characteristics of Co 2+∶MgAl2O4 crystals in different cutting directions were experimentally studied.The anisotropic transmittance characteristics of[100]and[110]-cut Co 2+∶MgAl2O4 crystals were measured,and the measurement results showed that the crystal transmittance of[100]and[110]cutting directions changed periodically depend on the polarization direction of the incidence light.And,the output characteristics of two cutting directions of Co 2+∶MgAl2O4 passively Q-switched lasers in[100]and[110]are compared.Results show that the[110]-cut crystal has obvious advantages.The output energy is about 8%higher than that of the[100]-cut crystals,and the stability,beam quality,and extinction ratio are improved slightly.
作者
方子君
惠勇凌
李国泰
朱占达
雷訇
李强
Zijun Fang;Yongling Hui;Guotai Li;Zhanda Zhu;Hong Lei;Qiang Li(Institute of Laser Engineering,Faculty of Materials and Manufacturing,Beijing University of Technology,Beijing 100124 China;Beijing Engineering Research Center of Laser Applied Technology,Beijing 100124 China;Beijing Higher Institution Engineering Research Center of Advanced Laser Manufacturing,Beijing 100124 China;Key Laboratory of Trans-scale Laser Manufacturing Technology Ministry of Education,Beijing 100124 China)
出处
《光学学报》
EI
CAS
CSCD
北大核心
2020年第22期151-156,共6页
Acta Optica Sinica
基金
国家自然科学基金(61378023)
北京市自然科学基金(4174085)
国家重大科研装备研制项目(ZDYZ2013-2)
北京市自然科学基金(4202007)。
