300 W two-stage Nd:YAG Innoslab microsecond amplifier.
300 W two-stage Nd:YAG Innoslab microsecond amplifier.
复制标题
DOI：
10.1364/ao.414813
复制
发表时间：
2021-02
期刊：
影响因子：
1.9
通讯作者：
Xuguang Zhang;Junzhi Ye;Xingwang Luo;Xiaoming Chen;Lei Zhang;Xiafei Xu;Huaijin Ren;Yanhua Lu;Yi Ma;Q. Gao;Jun Sun;Weimin Wang
中科院分区：
文献类型：
--
作者：
Xuguang Zhang;Junzhi Ye;Xingwang Luo;Xiaoming Chen;Lei Zhang;Xiafei Xu;Huaijin Ren;Yanhua Lu;Yi Ma;Q. Gao;Jun Sun;Weimin Wang
报道了一种1064 nm两级部分泵浦板条（Innoslab）微秒级放大器。4.4W的单频种子激光器被放大到303.6W，总的光-光效率为25.7%。第一级和第二级放大器的重叠效率分别为67%和55.6%。脉冲宽度为145.0 µs，重复频率为500 Hz，M2的光束质量因子在水平和垂直方向上分别为1.84和1.71。随着泵浦体积和种子激光模式之间的更高重叠，可以进一步提高输出功率和光学-光学效率。
In this paper, a two-stage partially pumped slab (Innoslab) microsecond amplifier at 1064 nm is reported. The 4.4-W single-frequency seed laser is amplified to 303.6 W, with an overall optical-optical efficiency of 25.7%. The overlapping efficiency of the first- and second- amplifier stage is 67% and 55.6%, respectively. The pulse width is 145.0 µs, at a repetition rate of 500 Hz, and the beam quality factor of M2 is 1.84 and 1.71 in the horizontal and vertical directions, respectively. With higher overlap between the pump volume and the seed laser mode, the output power and optical-optical efficiency can be further improved.