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Updated: Jun 24, 2025

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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
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概括
有效的连续波拉曼激光在555nm和559nm产生绿色和光,使用加多 (KGW) 和三 (LBO) 晶体实现. 6.6W和6.3W的高输出功率得到了高的转换效率.
科学领域:
- 激光物理 激光物理
- 非线性光学是非线性光学.
- 固态激光器 固态激光器
背景情况:
- 连续波 (CW) 激光器对于各种科学和工业应用至关重要.
- 从近红外激光器有效地产生可见光仍然是一个挑战.
- 拉曼激光器提供了波长转换的途径,但往往受到效率限制.
研究的目的:
- 开发高功率,高效的CW拉曼激光器,在绿色和石灰光谱区域运行.
- 为了研究使用NP切割的加多 tungstate (KGW) 对于斯托克斯波的产生.
- 为了优化洞内总频率生成 (SFG) 可见光的生产.
主要方法:
- 使用了一种Nd:YVO4/KGW拉曼激光系统,在1064nm处送.
- 使用Np切割KGW晶体用于1159nm和1177nm的斯托克斯波产生.
- 在三酸盐 (LBO) 晶体中实现了空洞内I型总频率生成,用于555nm和559nm的输出.
- 优化空腔长度和相位匹配温度,以获得最大的转换效率.
主要成果:
- 在555nm时达到6.6W的CW输出功率,在559nm时达到6.3W,功率为22W.
- 在555nm时达到高转换效率高达30%,在559nm时达到28.6%.
- 证明了双面二氧化涂层输出合器在提高共振质量因子方面的有效性.
结论:
- 在绿色和石灰光谱区域成功展示了高功率,高效的CW拉曼激光器.
- 对于Stokes生成的KGW和SFG的LBO的组合为可见激光器的开发提供了一个可行的途径.
- 优化腔参数对于在这种激光系统中实现高性能至关重要.
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