Author Affiliations
Abstract
1 中国科学院上海光学精密机械研究所 高功率激光物理重点实验室, 上海 201800
2 中国科学院大学, 北京 100049
To overcome the problem of cleanliness in the laser′s internal cavity, a glass cavity design for a Nd: glass slab amplifier was proposed, which uses UV-stop quartz glass for its main structure.The design of the main structure of the glass cavity and the sealing are optimized, and metal-coated surfaces are used to prevent light from escaping.The cleanliness of the stainless steel cavity of the slab amplifier of the SG-II-UP laser and the glass cavity of a 100 slab amplifier were compared; the cleanliness of the glass cavity was found to be 70% better than that of the stainless cavity. Further, advanced system analysis program was used to simulate the designed amplifier, with the pumping ratio of the Nd: glass in the glass cavity being increased by 8.84%.Thus, the glass cavity decreases the production of aerosols and enhances the pumping ratio of the Nd∶glass.
激光器 高功率固体激光驱动器 片状放大器 结构设计 气溶胶 Laser High power solid-state laser driver Slab amplifier Structural design Aerosol particle Collection Of theses on high power laser and plasma physics
2016, 14(1): 1114001
Author Affiliations
Abstract
1 中国科学院上海光学精密机械研究所 高功率激光物理重点实验室, 上海 201800
2 中国科学院大学, 北京 100049
To overcome the problem of cleanliness in the laser′s internal cavity, a glass cavity design for a Nd: glass slab amplifier was proposed, which uses UV-stop quartz glass for its main structure.The design of the main structure of the glass cavity and the sealing are optimized, and metal-coated surfaces are used to prevent light from escaping.The cleanliness of the stainless steel cavity of the slab amplifier of the SG-II-UP laser and the glass cavity of a 100 slab amplifier were compared; the cleanliness of the glass cavity was found to be 70% better than that of the stainless cavity. Further, advanced system analysis program was used to simulate the designed amplifier, with the pumping ratio of the Nd: glass in the glass cavity being increased by 8.84%.Thus, the glass cavity decreases the production of aerosols and enhances the pumping ratio of the Nd∶glass.
激光器 高功率固体激光驱动器 片状放大器 结构设计 气溶胶 Laser High power solid-state laser driver Slab amplifier Structural design Aerosol particle Collection Of theses on high power laser and plasma physics
2016, 14(1): 1114001
1 中国工程物理研究院 激光聚变研究中心，四川 绵阳 621900
2 四川大学 物理系，成都 610064
在激光惯性约束聚变研究过程中，激光驱动器打靶系统的光束谐波分离技术是驱动器建造研究的重要内容之一。根据高功率固体激光驱动器的发展历程，介绍了几种目前世界上正在应用的光束谐波分离技术，并对这些光束谐波分离方法的优缺点进行了对比分析。结合我国激光驱动器谐波分离技术的发展现状提出了将来的发展方向。这对大型激光驱动器的建造具有一定的指导意义。
激光技术 惯性约束聚变 高功率固体激光驱动器 谐波分离 laser technique inertial confinement fusion high power solid state laser facility color separation
1 中国工程物理研究院,激光聚变研究中心,绵阳,621900
2 四川大学,物理系,成都,610064
3 中国科学技术大学,国家同步辐射实验室,合肥,230029
介绍了一种用于惯性约束聚变研究的CSG衍射光栅研制情况,衍射光栅的制作采用离子束刻蚀的方法,光栅刻蚀面积为80mm×80mm.利用星光Ⅱ高功率固体激光装置实验平台对光路中插入衍射光栅后的光束近场调制变化进行了实验测试.实验结果表明,在低功率密度条件下(0.005GW/cm2)光路中插入CSG衍射光栅后,光束近场调制度没有明显的增加,相对于光束本身的调制来说,由光栅带来的调制为细微的小量调制.
衍射光栅 高功率固体激光驱动器 色分离光栅 光束近场调制度 功率密度
中国工程物理研究院,激光聚变研究中心,绵阳,621900
介绍了星光Ⅱ高功率固体激光驱动器的发展历程和物理实验的进展情况,研制了用于开展激光等离子体中电子密度与电子温度精密化诊断的两束探针光系统.阐述了激光装置中新能源系统的模块化设计方法以及新型集中控制系统的最新研究进展情况,所用方法和所得结论对高功率固体激光驱动器系统的设计具有一定应用意义.
基准物理实验 激光等离子体 探针光系统 高功率固体激光驱动器
