• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>High power lasers for fusion research II >Efficient Pumping of Inertial Fusion Energy Lasers
【24h】

Efficient Pumping of Inertial Fusion Energy Lasers

机译：高效泵浦惯性聚变能量激光器

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Solid-state lasers have been demonstrated as attractive drivers for laser-plasma interaction and have presently been developed for various applications like inertial confinement fusion (ICF) [1], particle acceleration and intense X-ray generation [3]. Viable real world applications like power production at industrial scale will require high laser system efficiency, repetition rate and lifetime which are only possible with semiconductor diode pumping. The paper describes the work conducted with two 20 kW diode laser sources pumping an ytterbium:YAG laser amplifier. The set-up acts as a small scale prototype for the DiPOLE project [2]. This project aims to develop scalable gas cooled cryogenic multi-slab diode pumped solid state lasers capable of producing KJ pulse energy. A scale-down prototype is currently under development at the Central Laser Facility (CLF) designed to generate 10 J at 10 Hz. To secure an efficient pumping process the sources have to fulfill aside power requirement in the spectral and time domain, the claim for high homogenization and low divergence of the spatial and angular beam distribution as well as a minimization of losses within the optical path. The existing diode laser sources designed and built by INGENERIC deliver 20 kW pulsed power, concentrated on a plateau of FWHM dimension of 20 × 20 mm~2 with a homogeneity of more than 90 %. The center wavelength of 939.5 run is controlled in a range of ± 0.1 nm. The time and area integrated spectrum of at least 76 % of the total energy is contained within a 6 nm wide wavelength band around the center wavelength. Repetition rates can be adjusted between 0.1 Hz up to 10 Hz with rise and fall times less than 50 μs and pulse durations from 0.2 ms to 1.2 ms. The paper describes the impact of different designs on the performance of pump sources and puts special emphasis on the influence of the optical components on efficiency and performance. In addition the influence of the measuring principle is discussed.
机译：固态激光器已被证明是激光-等离子体相互作用的诱人驱动器，目前已开发用于各种应用，例如惯性约束聚变（ICF）[1]，粒子加速和强X射线生成[3]。可行的现实世界应用（例如工业规模的发电）将需要较高的激光系统效率，重复频率和使用寿命，而这只有半导体二极管泵浦才可能实现。本文介绍了用两个20 kW二极管激光源泵浦an：YAG激光放大器进行的工作。该设置是DiPOLE项目的小型原型[2]。该项目旨在开发可产生KJ脉冲能量的可扩展气冷低温多板二极管泵浦固态激光器。中央激光设备（CLF）目前正在开发一种按比例缩小的原型，该原型旨在以10 Hz的频率产生10J。为了确保有效的泵浦过程，光源必须满足频谱和时域中的功率要求，要求空间和角度光束分布高度均匀和低散度，以及将光路内的损耗最小化。由INGENERIC设计和制造的现有二极管激光源可提供20 kW的脉冲功率，集中在FWHM尺寸为20×20 mm〜2的平台​​上，均匀度超过90％。 939.5nm的中心波长被控制在±0.1nm的范围内。总能量的至少76％的时间和面积积分光谱包含在中心波长附近的6 nm宽波段内。重复率可以在0.1 Hz至10 Hz之间进行调整，其上升和下降时间小于50μs，脉冲持续时间从0.2 ms至1.2 ms。本文描述了不同设计对泵浦源性能的影响，并特别强调了光学组件对效率和性能的影响。此外，还讨论了测量原理的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号