Author Affiliations
Abstract
1 Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
2 University of Chinese Academy of Sciences, Beijing 100049, China
3 Laser Fusion Research Center, Chinese Academy of Engineering Physics, Mianyang, Sichuan 621900, China
This work presents a brief introduction on three kinds of newly developed $\text{Nd}^{3+}$-doped laser glasses in Shanghai Institute of Optics and Fine Mechanics (SIOM), China. Two $\text{Nd}^{3+}$-doped phosphate glasses with lower thermal expansion coefficient and thermal shock resistance 4 times higher than that of N31 glass are developed for laser processing. Nd:Silicate and Nd:Aluminate glasses with peak emission wavelength at 1061 and 1065 nm, effective emission bandwidth of 34 and 50 nm, respectively, are developed for Exawatt-class laser system application. Fluorophosphate glasses with low nonlinear refractive index ($n_{2}=0.6{-}0.86$) and long fluorescence lifetime ($430{-}510~\unicode[STIX]{x03BC}\text{s}$) are investigated for the purpose of decreasing B integral in high-power laser system. The properties of all these glasses are presented and compared with those of commercial neodymium laser glasses.
aluminate glass fluorophosphate glass high-power laser neodymium laser glass phosphate glass silicate glass High Power Laser Science and Engineering
2017, 5(1): 010000e1
中国科学院 上海光学精密机械研究所, 上海 201800
介绍了中国科学院上海光学精密机械研究所开展的激光钕玻璃连续熔炼技术, 描述了该项技术近年来的研究进展和研究成果。给出了N31激光钕玻璃的连续熔炼流程, 介绍了开展的磷酸盐钕玻璃连续熔炼单元技术的模拟, 连续熔炼实验线的设计、建设、改造和验证等大量工作。成功完成了除羟基、除铂颗粒、过渡金属杂质离子控制、大尺寸成型和低应力隧道窑退火等一系列关键单元技术, 实现了N31钕玻璃的连续熔炼批量制造。实验显示: 连续熔炼N31激光钕玻璃的荧光寿命、激光波长吸收损耗、光学均匀性等指标达到了神光装置的使用要求。比较结果显示: 连续熔炼钕玻璃的参数一致性和400 nm吸收系数指标均优于坩埚熔炼的激光玻璃; 而它的3 333 nm吸收系数和铂颗粒破坏阈值优于美国劳伦斯利弗莫尔国家实验室报道的连续熔炼LHG-8钕玻璃。
激光玻璃 钕玻璃 连续熔炼 除羟基 除铂颗粒 综述 neodymium laser glass phosphate laser glass continuous melting hydroxylation removal Pt-inclusion removal review 光学 精密工程
2016, 24(12): 2969
中国科学院 上海光学精密机械研究所， 上海 201800
在概述国内外高功率激光钕玻璃的发展及其主要性质的基础上，重点论述了上海光学精密机械研究所在大口径N31高功率激光钕玻璃半连续熔炼工艺、连续熔炼工艺、包边工艺等方面的研究进展。报道了半连续熔炼工艺制备的不同Nd2O3浓度N31钕玻璃的光吸收损耗和荧光寿命及小信号增益系数，并给出了这些钕玻璃坯片小信号增益系数的波动范围。通过对半连续熔炼和连续熔炼工艺制备的N31激光钕玻璃主要性能的比较，证明连续熔炼工艺制备的N31钕玻璃的主要性能指标与半连续熔炼的性能相当。对于400 mm大口径N31钕玻璃坯片的包边进行了模拟考核，结果表明,采用现有包边工艺的钕玻璃可以承受1 000次高功率氙灯辐射。
高功率激光 钕玻璃 大口径 惯性约束聚变 high power laser neodymium laser glass large aperture inertial confinement fusion 强激光与粒子束
2011, 23(10): 2560
