High-performance frequency stabilization of ultraviolet diode lasers by using dichroic atomic vapor spectroscopy and transfer cavity

Shen Danna¹, Ding Liangyu¹, Zhang Qiuxin¹, Zhu Chenhao¹, Wang Yuxin¹, Zhang Wei^{1, 2}, Zhang Xiang^{1, 2, †}

The left, middle and right panels show the frequency drifting (black) when the laser is not locked, locked with a wavelength meter, and locked using our method, respectively. The right panel shows a stable ion fluorescence counts rate (gray) and the inset shows the fluorescence spectrum with respect to detunning frequency in MHz. The “jump” of ion fluorescence counts rate indicates an occasional ion “dark” event.