强激光与粒子束, 2004, 16 (6): 754, 网络出版: 2006-05-15
高功率LDA紧密环绕抽运Nd:YLF放大器实验研究
Experiment research of Nd:YLF laser amplifier tightly ring-pumped by high power LD array
LDA紧密环绕抽运 Nd:YLF棒 两级双程离轴放大 LDA tight ring-pump Nd:YLF rod Two-stage double-pass abaxial amplification
摘要
采用高功率LDA紧密环绕抽运φ10mm×10mm Nd:YLF和两级双程离轴行波放大结构,实现了对5mm×5mm口径激光的放大.分析并实验研究了在不同抽运电流及不同抽运延时条件下,激光放大器及两级双程离轴放大系统小信号增益的规律.实验得到两级双程放大系统的小信号净增益可达600.
Abstract
The 5mm×5mm laser pulse is amplified using φ10mm×10mm Nd:YLF laser amplifier tightly ring-pumped by high power LDA and two-stage double-pass abaxial travelling wave amplifying structure. The rules of gain of laser amplifier and amplifying system with pump current and pump delay are studied by simulation and experiment. The two-stage double-pass abaxial small-signal net gain of amplifying system is 600 in experiment, and the energy extract efficiency is 0.86%. The results of experiment and simulation indicate that the structure of the amplifier and amplifying system has high energy extract efficiency and gain, low coupling loss, the advantages of being compact and simple and so on.
张申金, 冯国英, 李明中, 隋展, 丁磊, 林宏奂, 王衍勇, 唐军, 罗亦鸣, 欧群飞. 高功率LDA紧密环绕抽运Nd:YLF放大器实验研究[J]. 强激光与粒子束, 2004, 16(6): 754. ZHANG Shen-jin, FENG GUo-ying, LI Ming-zhong, SUI Zhan, DING Lei, LIN Hong-huan, WANG Yan-yong, TANG Jun, LUO Yi-ming, OU Qun-fei. Experiment research of Nd:YLF laser amplifier tightly ring-pumped by high power LD array[J]. High Power Laser and Particle Beams, 2004, 16(6): 754.
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