中国激光, 2018, 45 (8): 0801001, 网络出版: 2018-08-11
用于大口径钛宝石放大器的四路钕玻璃抽运源 下载: 1018次封面文章
Four-Outputs Nd∶glass Pump Source for Large Aperture Ti∶Sapphire Amplifier
激光器 放大器 抽运源 钕玻璃 大口径钛宝石 时域双脉冲 lasers amplifiers pump source Nd∶glass large aperture Ti∶sapphire time-domain dual pulse
摘要
研制了一套能量输出稳定、光斑分布均匀、时域近方波形的四路钕玻璃抽运源系统。系统能够输出4×180 J的基频能量(波长为1053 nm),4×80 J的倍频能量(波长为526.5 nm)。主要结构包括四部分:前端种子源、再生放大器、钕玻璃棒放链和KDP倍频晶体。利用偏振片实现了垂直偏振的两路基频光合束,经过第二类相位匹配KDP晶体倍频,获得了共线且同偏振的526.5 nm倍频光,实现了用于150 mm口径钛宝石放大器的结构紧凑的双脉冲抽运源。
Abstract
We built a set of four-outputs Nd∶glass pump source system with stable energy output, uniform spot and time-domain approximate square waveform. The system can achieve output of 4×180 J at 1053 nm in fundamental frequency and 4×80 J at 526.5 nm in double frequency. The main structure consists of 4 parts, which are the front-end seed source, the regenerative amplifier, Nd∶glass rod amplifier chain and the KDP frequency doubling crystal. Those two fundamental frequency beams with vertical polarization are combined by the polarizer. The 526.5 nm double frequency laser pulse with the same directivity and polarization is obtained after Type-Ⅱ phase matching frequency-doubling KDP crystal. As a result, the compact dual pulse pump source for the Ti∶sapphire amplifier is realized.
黄培, 甘泽彪, 李文启, 於亮红, 郭震, 曹鹤, 王建业, 梁晓燕, 李儒新. 用于大口径钛宝石放大器的四路钕玻璃抽运源[J]. 中国激光, 2018, 45(8): 0801001. Huang Pei, Gan Zebiao, Li Wenqi, Yu Lianghong, Guo Zhen, Cao He, Wang Jianye, Liang Xiaoyan, Li Ruxin. Four-Outputs Nd∶glass Pump Source for Large Aperture Ti∶Sapphire Amplifier[J]. Chinese Journal of Lasers, 2018, 45(8): 0801001.