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The Development and Progress of XeCl Excimer Laser System

机译：XECL准分子激光系统的开发与进展

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A large angularly multiplexed XeCl excimer laser system is under development at the Northwest Institute of Nuclear Technology (NINT). It is designed to explore the technical issues of uniform and controllable target illumination. Short wavelength, uniform and controllable target illumination is the fundamental requirement of high energy density physics research using large laser facility. With broadband, extended light source and multi-beam overlapping techniques, rare gas halide excimer laser facility will provide uniform target illumination theoretically. Angular multiplexing and image relay techniques are briefly reviewed and some of the limitations are examined to put it more practical. The system consists of a commercial oscillator front end, three gas discharge amplifiers, two electron beam pumped amplifiers and the optics required to relay, encode and decode the laser beam. An 18 lens array targeting optics direct and focus the laser in the vacuum target chamber. The system is operational and currently undergoing tests. The total 18 beams output energy is more than 100J and the pulse width is 7ns (FWHM), the intensities on the target will exceed 10~(13)W/cm~2. The aberration of off-axis imaging optics at main amplifier should be minimized to improve the final image quality at the target. Automatic computer controlled alignment of the whole system is vital to efficiency and stability of the laser system, an array of automatic alignment model is under test and will be incorporated in the system soon.
机译：在西北核技术研究所（尼林）开发了一个大角度复用的XECL准分子激光系统。它旨在探讨均匀和可控目标照明的技术问题。短波长，均匀和可控的目标照明是使用大型激光设施的高能密度物理研究的基本要求。利用宽带，延长光源和多光束重叠技术，稀有气体卤化物准分子激光设施理论上将提供均匀的目标照明。简要回顾了角度复用和图像中继技术，并检查了一些限制以使其更加实用。该系统包括商业振荡器前端，三个气体放电放大器，两个电子束泵浦放大器和中继所需的光学器件，编码和解码激光束。一个18个透镜阵列瞄准光学器件直接并将激光聚焦在真空靶室中。该系统正在运营，目前正在进行测试。总数18个光束输出能量大于100J，脉冲宽度为7ns（fwhm），目标的强度将超过10〜（13）w / cm〜2。应最小化主放大器处的轴外成像光学器件的像差，以提高目标的最终图像质量。全自动计算机控制对准整个系统对激光系统的效率和稳定性至关重要，正在测试一系列自动对准模型，并将在系统中结合在系统中。

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