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Updated: Jan 11, 2026

10:17
20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
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同时产生5.87W的平均功率和0.75MW的峰值功率在3.1μm的单通,单阶段参数源的单通,单阶段参数源
Optics express
|November 11, 2025
概括
研究人员探索了用于光学参数生成 (OPG) 的新型束工程. 一个光滑的,扩大的光束最大限度地提高了晶体功率耐受性,在中红外超短脉冲中实现了创纪录的平均和峰值功率.
科学领域:
- 非线性光学是非线性光学.
- 激光物理 激光物理
- 材料科学 材料科学 材料科学
背景情况:
- 紧密聚焦的束是光学参数源的标准,以提高效率.
- 然而,高功率并不总是通过在非线性晶体中紧密聚焦的光束来实现.
研究的目的:
- 通过工程束系统探索光学参数生成 (OPG) 的最终性能.
- 调查超出紧密聚焦的束配置,以提高功率输出.
主要方法:
- 使用的MgO:PPLN (用氧化添加的周期性化) 水晶.
- 工程梁形状,专注于纵向光滑和横向扩大.
- 分析了晶体内的光束演变和功率耐受性.
主要成果:
- 确定了一个最佳的模式:平滑纵向演变和扩大的横梁尺寸.
- 在MHz的重复率下,实现了前所未有的~10.45W (信号) 和~5.87W (传输器) 的平均功率.
- 在1624.7nm和3107.8nm分别达到~1.39MW (信号) 和~0.75MW (发射器) 的记录峰值功率.
结论:
- 探索的模式通过更充分地利用有效光圈来提高晶体功率耐受性.
- 这种方法提供了一种简化,高效和强大的解决方案,用于通过OPG产生高平均和峰值功率的中红外超短脉冲.
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