相关实验视频
Updated: Jul 6, 2025

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Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
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概括
一个新的光学频率使用加的CALGO提供高平均功率 (3.5 W) 和短脉冲 (44 fs). 这种强大的激光源以1GHz的重复率运行,从而实现了先进的应用.
科学领域:
- 激光物理学的激光物理学
- 非线性光学是一种非线性光学.
- 频率计量学 频率计量学
背景情况:
- 光学频率对于精确的频率测量至关重要.
- 克尔镜头模式锁定 (KLM) 是产生超短激光脉冲的强大技术.
- 开发具有高重复率的紧和强大的KLM源是一个持续的挑战.
研究的目的:
- 为了演示基于KLM的自引用光学频率,用添加的CALGO.
- 为了实现高重复率 (GHz级) 的生成光学频率.
- 为了描述的功率,脉冲持续时间,定时动和相位噪声.
主要方法:
- 使用了Kerr-镜头的模式锁定在酸加甲 (Yb:CALGO) 晶体中.
- 采用多模式方案,以在高重复率下实现稳定的模式锁定.
- 使用功率计,自动校正器和频域噪声分析来表征输出.
主要成果:
- 产生了强大的光学频率,平均功率为3.5W,脉冲持续时间为44fs.
- 实现了1 GHz的重复率,其余根-平方平均时间动为146 fs.
- 在107mrad (1Hz到10MHz范围) 测量载体外偏移频率的剩余集成相位噪声.
- 获得了2.7W的稳定平均功率,适合直接应用.
结论:
- 成功演示了第一个多模式送的Kerr-lens模式锁定光学频率,以千兆赫兹的重复率.
- 开发的Yb:CALGO激光源为各种需要精确频率标准的应用提供了强大的高性能平台.
- 高平均功率和稳定输出为在光谱学和光通信等领域的实际实施铺平了道路.
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