多波长半导体激光阵列端泵Nd∶YAG脉冲激光器  

Multi-color Laser Diode Array End-pump Nd ∶YAG Pulsed Laser

作　　者：彭超[1] 刘学胜[1] 司汉英[2] 董剑[1] 曹明真 刘友强[1] 王智勇[1] PENG Chao;LIU Xue-sheng;SI Han-ying;DONG Jian;CAO Ming-zhen;LIU You-qiang;WANG Zhi-yong(Institude of Laser Engineering,Beijing University of Technology,Beijing 100022,China;Fifty-third Research Institute of China Electronic Science and Technology Group,Jinzhou 121000,China)

机构地区：[1]北京工业大学激光工程研究院,北京100022 [2]中国电子科技集团第五十三研究所,辽宁锦州121000

出　　处：《发光学报》2018年第2期162-168,共7页Chinese Journal of Luminescence

基　　金：北京市教委面上项目(KM201310005019)资助~~

摘　　要：研制了无温控多波长激光二极管阵列端面泵浦Nd∶YAG电光调Q激光器。采用4 000 W多波长准连续激光二极管阵列作为泵浦源,快轴准直镜与透镜导管作为泵浦耦合系统,端面泵浦6 mm×60 mm的Nd∶YAG晶体,并采用RTP晶体进行电光调Q实验。在重复频率5 Hz、室温(25℃)时,激光器获得了最大输出能量74.4 m J、脉宽15 ns的1 064 nm脉冲激光输出,光光转换效率达到11%。在25~55℃的工作温度下,对多波长LDA的光谱特征与激光器的输出特性作了测试,激光器输出能量随着工作温度的上升而先迅速下降再逐步保持稳定,当重复频率分别为5 Hz和10 Hz时,激光器对应的最低输出能量分别为48 m J与37 m J。Multi-color laser diode array end-pumped Nd∶YAG electro-optical Q-switched laser without temperature controlled was developed.Using a 4 000 W multi-color QCW laser diode array as the pumping source,and fast axis collimator,lens duct as coupling system,and RTP as Q-switch,end-pumped?6 mm×60 mm Nd∶YAG crystal,the laser obtained a 1 064 nm pulsed laser output with maximum output energy of 74.4 mJ,pulse width of 15 ns and optical conversion efficiency of 11%at the repetition rate of 5 Hz and 25℃.The spectral characteristics of multi-wavelength LDA and the output characteristics of the laser were tested under operating temperature of 25℃to 55℃,the output energy of the laser rapidly decreases,then gradually stabilizes with the increase of the working temperature.When the repetition rates are 5 Hz and 10 Hz,the minimum output energy of the laser is 48 mJ and 37 mJ,respectively.Experiments indicate that the multi-color laser diode array has more value in realizing no temperature control of high energy all-solid-state lasers.

关 键 词：全固态激光器 多波长激光二极管阵列 透镜导管 电光调Q 高能量 

分 类 号：TN248.1[电子电信—物理电子学]