A 61-mJ,1-kHz cryogenic Yb∶YAG laser amplifier

来源 :中国物理B（英文版） | 被引量 : 0次 | 上传用户：yx5813399

【摘要】

：

【作者】

：

Huijun He Jun Yu Wentao Zhu Qingdian Lin Xiaoyang Guo Cangtao Zhou Shuangchen Ruan

【机构】

：

Shenzhen Key Laboratory of Ultraintense Laser and Advanced Material Technology,Center for Advanced M

【出处】

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中国物理B（英文版）

【发表日期】

：

2021年12期

【关键词】

：

ytterbium laser system Yb∶YAG laser amplifier cryogenic laser amplification high

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We report a diode-pumped rod-type Yb∶YAG laser amplifier operating at 1 kHz.Cryogenic cooling method was adopted to make the Yb∶YAG crystal work with four-level behavior.A single-frequency fiber laser acts as the seed in an actively Q-switched Yb∶YAG oscillator.The resonator delivers 5.75-mJ pulses at 1 kHz with a pulse duration of ap-proximately 40 ns.The pulses were amplified to 61 mJ in a four-pass rod-type Yb∶YAG amplifier with optical-to-optical efficiency of 24％ in the main amplifier.The M2 parameter of the output laser is ＜ 1.4.

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A 61-mJ,1-kHz cryogenic Yb∶YAG laser amplifier

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