Current-feedback-stabilized laser system for quantum simulation experiments using Yb clock transition at 578 nm
Current-feedback-stabilized laser system for quantum simulation experiments using Yb clock transition at 578 nm
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DOI：
10.1063/1.5110037
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发表时间：
2019-08-01
影响因子：
1.6
通讯作者：
Takahashi, Y.
中科院分区：
文献类型：
--
作者：
Takata, Y.;Nakajima, S.;Takahashi, Y.
基于干涉滤光片稳定的外腔半导体激光器（IFDL），研制了一套用于镱原子578 nm时钟跃迁光谱测量的激光系统。由于改进的频率-电流响应的激光二极管芯片和IFDL的机械扰动的敏感性较低，我们成功地稳定的频率，以一个简单的电流反馈系统的高精细度超低膨胀玻璃腔。利用该激光系统，我们进行了高分辨率的Yb的时钟光谱，并发现稳定的激光线宽小于320 Hz。由AIP Publishing授权出版。
We developed a laser system for the spectroscopy of the clock transition in ytterbium (Yb) atoms at 578 nm based on an interference-filter stabilized external-cavity diode laser (IFDL) emitting at 1156 nm. Owing to the improved frequency-to-current response of the laser-diode chip and the less sensitivity of the IFDL to mechanical perturbations, we succeeded in stabilizing the frequency to a high-finesse ultra-low-expansion glass cavity with a simple current feedback system. Using this laser system, we performed high-resolution clock spectroscopy of Yb and found that the linewidth of the stabilized laser was less than 320 Hz. Published under license by AIP Publishing.