Macrae Calum D, Bongs Kai, Holynski Michael
Opt Lett. 2021 Mar 15;46(6):1257-1260. doi: 10.1364/OL.415963.
A method for the agile generation of the optical frequencies required for laser cooling and atom interferometry of rubidium is demonstrated. It relies on fiber Bragg grating technology to filter the output of an electro-optic modulator and was demonstrated in an alignment-free, single-seed, frequency-doubled fiber laser system. The system was capable of frequency switching over a 30 GHz range in less than 40 ns, with ∼0.5 output power and amplitude modulation with a ∼15 rise/fall time and an extinction ratio exceeding 80 dB. The technology is ideal for enabling high-bandwidth, mobile industrial, and space applications of quantum technologies.
展示了一种用于铷原子激光冷却和原子干涉测量所需光频率的快速生成方法。它依靠光纤布拉格光栅技术来过滤电光调制器的输出，并在无对准、单种子、倍频光纤激光系统中得到了验证。该系统能够在不到40纳秒的时间内在30吉赫兹范围内进行频率切换，输出功率约为0.5，幅度调制的上升/下降时间约为15，消光比超过80分贝。该技术非常适合实现量子技术的高带宽、移动工业和太空应用。
