• High Power Laser Science and Engineering
  • Vol. 4, Issue 3, 03000e21 (2016)
Wanguo Zheng1、2, Xiaofeng Wei1, Qihua Zhu1、2, Feng Jing1, Dongxia Hu1、2, Jingqin Su1、2, Kuixing Zheng1, Xiaodong Yuan1, Hai Zhou1, Wanjun Dai1, Wei Zhou1, Fang Wang1, Dangpeng Xu1, Xudong Xie1, Bin Feng1, Zhitao Peng1, Liangfu Guo1, Yuanbin Chen1, Xiongjun Zhang1, Lanqin Liu1, Donghui Lin1, Zhao Dang1, Yong Xiang1, and Xuewei Deng1、2
Author Affiliations
  • 1Laser Fusion Research Center, China Academy of Engineering Physics, P.O. Box 919-988, MianYang 621900, China
  • 2IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China
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    Abstract

    SG-III laser facility is now the largest laser driver for inertial confinement fusion research in China. The whole laser facility can deliver 180 kJ energy and 60 TW power ultraviolet laser onto target, with power balance better than 10%. We review the laser system and introduce the SG-III laser performance here.

    1 Introduction

    As one of the major approaches to achieve controllable fusion ignition, laser driven inertial confinement fusion (ICF) has been widely studied around the world[14]. As essential drivers, several huge laser facilities have been constructed, such as the National Ignition Facility (NIF) in the United States[5], the laser megajoule (LMJ) in France[6] and the SG-III laser facility in China[7]. These laser facilities are designed to provide timely tailored ultraviolet laser driving during as long as tens of nanoseconds, producing x-ray radiation in a hohlraum which then compresses DT pellet to achieve fusion ignition[4]. In order to deliver more energy onto the target, the lasers have to be converted to ultraviolet, and wavelength tuning is required to avoid energy loss. Typically, fusion level laser facilities are designed to output MJ level laser energy. NIF has 192 laser beamlines, providing 1.8 MJ laser energy. LMJ also has 1.8 MJ designed output capability with 240 beamlines. The SG-III laser facility is the largest laser driver in China at present, which is designed to deliver 180 kJ ultraviolet laser energy onto the target, exploring the key physics processes and the technologies of ICF, while not to achieve fusion ignition.

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    Wanguo Zheng, Xiaofeng Wei, Qihua Zhu, Feng Jing, Dongxia Hu, Jingqin Su, Kuixing Zheng, Xiaodong Yuan, Hai Zhou, Wanjun Dai, Wei Zhou, Fang Wang, Dangpeng Xu, Xudong Xie, Bin Feng, Zhitao Peng, Liangfu Guo, Yuanbin Chen, Xiongjun Zhang, Lanqin Liu, Donghui Lin, Zhao Dang, Yong Xiang, Xuewei Deng. Laser performance of the SG-III laser facility[J]. High Power Laser Science and Engineering, 2016, 4(3): 03000e21
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    Received: Apr. 4, 2016
    Accepted: Jun. 2, 2016
    Published Online: Nov. 7, 2016
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