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, †}

(a) Diagram of the confocal FP cavity. (b) The transmitted peak signal without (top) and with (bottom) modulating the phase of the laser when scanning the cavity length. (c) The demodulated error signal when scanning the cavity length.