相关实验视频
Updated: Sep 13, 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
本研究提出了一种用于精确控制双光源的新方法. 它可以根据需求生成特定的重复频率差异,以便在光谱和距离测量中进行更快,更准确的测量.
科学领域:
- * 光学和光子学 * 光学和光子学
- * 激光物理 激光物理
- * 频谱学 是一种光谱学.
背景情况:
- *双光源对于高精度测距和光谱学至关重要.
- *重复频率的差异决定了测量准确度和更新率之间的平衡.
- * 当前调整模式锁定光纤激光器 (MLFL) 这种差异的方法具有挑战性,并且缺乏按需控制.
研究的目的:
- * 为了证明在MLFL中按需生成双模式 (DCR) 具有指定的重复频率差异.
- *与现有技术相比,开发一种更快,更稳定的方法来实现DCR.
- * 为了能够精确控制可调节的重复频率差异的DCR发射波长.
主要方法:
- * 采用了与可编程光学过器和时间延伸分散里埃变换集成的光谱寻找器,用于实时光谱采集.
- * 采用强化学习来动态调整内腔极化状态,优化双断片波器.
- *控制了一个双的发射波长,以调整重复频率差异.
主要成果:
- * 实现了按需的DCR生成,重复频率差异可从162Hz调整到212Hz (对应于1528nm到1539nm的发射).
- *将自动DCR生成的平均时间缩短到0.407秒,比以前的方法快大约六倍.
- * 经过12小时以上的稳定DCR运行,证明了系统的可靠性.
结论:
- *开发的智能MLFL系统成功实现了随需的DCR生成与实时控制.
- * 这一进步显著提高了双光源的速度和精度.
- * 该技术为在高精度测距和光谱学领域的更广泛应用铺平了道路.
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