4-λLDAs侧面脉冲泵浦Nd:YAG激光器  

4-λPulse-pumped Nd:YAG Lasers on the Side of LDAs

作　　者：张良 李岩 杨拓 徐英添 许鑫 ZHANG Liang;LI Yan;YANG Tuo;XU Yingtian;XU Xin(State Key Laboratory of High Power Diode Lasers,Changchun University of Science and Technology,Changchun 130022;Chinese People's Liberation Army 95959,Beijing 100197)

机构地区：[1]长春理工大学高功率半导体激光国家重点实验室,长春130022 [2]中国人民解放军95959部队,北京100197

出　　处：《长春理工大学学报（自然科学版）》2024年第6期62-67,共6页Journal of Changchun University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金(61805023,61804103);吉林省中青年科技创新创业卓越人才(团队)项目(20220508138RC)。

摘　　要：设计了一款多波长激光二极管阵列(Laser diode array,LDA)侧面脉冲泵浦Nd:YAG晶体的电光调Q激光器。泵浦源采用峰值功率4000 W的4-λ激光二极管阵列,增益介质为φ5 mm×50 mm Nd:YAG晶体,并用磷酸二氘钾晶体进行电光调Q实验。激光器在工作温度30℃,重复频率30 Hz下,得到最大输出能量176 mJ、脉宽4.8 ns的1064 nm脉冲激光输出,光光转化效率达到15.1%,光束质量M_(x)^(2)=3.1,M_(y)^(2)=3.2。对控温和无温控时激光器输出做了稳定性测试,二者的平均能量均为144 mJ,最低输出能量121 mJ。In this paper,a multi-wavelength laser diode array(Laser diode array,LDA)side pulse-pumped electro-optic Q-switched laser of Nd:YAG crystal is designed.The pump source uses a 4-λlaser diode array with a peak power of 4000 W,and the gain medium is aϕ5 mm×50 mm Nd:YAG crystal,and the electro-optic Q-switching experiment is carried out with a potassium diduterium phosphate crystal.When the laser works at a working temperature of 30℃and a repetition rate of 30 Hz,a 1064 nm pulsed laser output with a maximum output energy of 176 mJ and a pulse width of 4.8 ns is obtained.The light-to-light conversion efficiency reaches 15.1%.The beam quality M^(2)_(x)=3.1,M^(2)_(y)=3.2.The stability test of the laser output under temperature control and no temperature control was carried out.The average energy of both is 144 mJ,and the minimum output energy is 121 mJ.

关 键 词：全固体激光器 4-λ 电光调Q 

分 类 号：TN248.1[电子电信—物理电子学]