S. G. Garanin, V. N. Derkach, K. N. Makarov, V. A. Ostrovsky, M. I. Pergament, M. V. Putilin, D. V. Sizmin
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引用次数: 0
摘要
摘要 研究了当前制造脉冲能量为几十或几百焦耳的高能重复脉冲连续波激光器的趋势。分析了在此类激光器中使用的有源介质。对俄罗斯生产的掺镱钇钕石榴石（Yb:YAG）有源晶体和陶瓷元件在 100 至 295 K 的温度下进行了实验研究。介绍了用于活性元素的二极管泵系统和用于其发射的均质器。介绍了泵送系统的物理和技术特性。通过实验测量了菲涅尔损耗、吸收损耗和自发辐射增强导致的损耗，这些损耗降低了反向群体中存储的能量。此外，还介绍了在具有不同有源元件组的多通电路中测量增益的结果。
Current Trends in the Creation of High-Energy Repetitively Pulsed Continuous Wave Lasers
The current trends in the creation of high-energy repetitively pulsed continuous wave lasers with pulse energies of tens and hundreds of joules are considered. Active media are analyzed for their use in such lasers. The Yb:YAG active crystalline and ceramic elements produced in Russia are experimentally studied at temperatures from 100 to 295 K. The data of the cryogenic cooling system for active elements are presented. A diode pumping system for active elements and a homogenizer for its emission are described. The physical and technical characteristics of the pumping system are given. Fresnel losses, absorption losses, and losses due to enhanced spontaneous emission, which reduce the energy stored in the inverse population, are measured experimentally. The results of measuring the gain in multi-pass circuits with different sets of active elements are presented.
期刊介绍：
Doklady Physics is a journal that publishes new research in physics of great significance. Initially the journal was a forum of the Russian Academy of Science and published only best contributions from Russia in the form of short articles. Now the journal welcomes submissions from any country in the English or Russian language. Every manuscript must be recommended by Russian or foreign members of the Russian Academy of Sciences.
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