| Dual sub-picosecond and sub-nanosecond laser system |
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| 作者姓名： | 谢兴龙 刘凤翘 杨镜新 杨鑫 李美荣 薛之玲 高奇 管富义 张伟清 黄关龙 庄亦飞 韩爱妹 林尊琪 |
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| 作者单位： | National Laboratory on High Power Laser and Physics，Shanghai Institute of Optics and Fine Mechanics，The Chinese Academy of Sciences，Shanghai 201800，National Laboratory on High Power Laser and Physics，Shanghai Institute of Optics and Fine Mechanics，The Chinese Academy of Sciences，Shanghai 201800，National Laboratory on High Power Laser and Physics，Shanghai Institute of Optics and Fine Mechanics，The Chinese Academy of Sciences，Shanghai 201800，National Laboratory on High Power Laser and Physics，Shanghai Institute of Optics and Fine Mechanics，The Chinese Academy of Sciences，Shanghai 201800，National Laboratory on High Power Laser and Physics，Shanghai Institute of Optics and Fine Mechanics，The Chinese Academy of Sciences，Shanghai 201800，National Laboratory on High Power Laser and Physics，Shanghai Institute of Optics and Fine Mechanics，The Chinese Academy of Sciences，Shanghai 201800，National Laboratory on High Power Laser and Physics，Shanghai Institute of Optics and Fine Mechanics，The Chinese Academy of Sciences，Shanghai 201800，National Laboratory on High Power Laser and Physics，Shanghai Institute of Optics and Fine Mechanics，The Chinese Academy of Sciences，Shanghai 201800，National Laboratory on High Power Laser and Physics，Shanghai Institute of Optics and Fine Mechanics，The Chinese Academy of Sciences，Shanghai 201800，National Laboratory on High Power Laser and Physics，Shanghai Institute of Optics and Fine Mechanics，The Chinese Academy of Sciences，Shanghai 201800，National Laboratory on High Power Laser and Physics，Shanghai Institute of Optics and Fine Mechanics，The Chinese Academy of Sciences，Shanghai 201800，National Laboratory on High Power Laser and Physics，Shanghai Institute of Optics and Fine Mechanics，The Chinese Academy of Sciences，Shanghai 201800，National Laboratory on High Power Laser and Physics，Shanghai Institute of Optics and Fine Mechanics，The Chinese Academy of Sciences，Shanghai 201800 |
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| 基金项目： | This work was supported by the National 863-804 (former 416)-2 Hi-Tech Program of China. |
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| 摘 要： | A high power laser system delivering a 20-TW, 0.5-0.8 ps ultra-short laser pulse and a 20-J, 500-ps long pulse simultaneously in one shot is completed. This two-beam laser operates at the wavelength of 1053 nm and uses Nd doped glass as the gain media of the main amplification chain. The chirped-pulse amplification (CPA) technology is used to compress the stretched laser pulse. After compression, the ultra-short laser pulse is measured: energy above 16.0 J, S/N contrast ratio-10~5 : 1, filling factor->52.7%. Another long pulse beam is a non-compressed chirped laser pulse, which is measured: energy-20 J, pulse duration 500 ps. The two beams are directed onto the target surface at an angle of 15°.
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Dual sub-picosecond and sub-nanosecond laser system |
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| Abstract: | A high power laser system delivering a 20-TW, 0.5 - 0.8 ps ultra-short laser pulse and a 20-J, 500-ps long pulse simultaneously in one shot is completed. This two-beam laser operates at the wavelength of 1053 nm and uses Nd doped glass as the gain media of the main amplification chain. The chirped-pulse amplification (CPA) technology is used to compress the stretched laser pulse. After compression, the ultrashort laser pulse is measured: energy above 16.0 J, S/N contrast ratio ～ 105: 1, filling factor ～＞52.7%.Another long pulse beam is a non-compressed chirped laser pulse, which is measured: energy ～ 20 J, pulse duration 500 ps. The two beams are directed onto the target surface at an angle of 15°. |
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