论文标题
A 30 W，亚kHz频率锁激光在532 nm处
A 30 W, sub-kHz frequency-locked laser at 532 nm
论文作者
论文摘要
我们报告了实现高功率，超果linewidth和频率锁定的532〜nm激光系统的实现。激光系统由单次和腔内的第二次谐波生成在1064〜nm的连续波掺杂纤维激光器的非线性晶体中，分别是定期粘的niobate和lithium triborate的。使用47 〜W红外输入，通过I型临界相匹配在腔内锂部落晶体中产生30〜W绿色激光器。测量激光线宽为子kHz的顺序，这是通过同时锁定单个频率的频率将输出加倍到碘吸收线R69（36-1）的532〜nm处实现的。此外，激光系统与另一个从1064〜nm激光器之间的相位锁定显示，相对频率可调性高达10〜GHz。我们的结果完全满足了532〜nm激光对用超低原子进行量子模拟的要求。
We report on the realization of a high-power, ultranarrow-linewidth, and frequency-locked 532~nm laser system. The laser system consists of single-pass and intra-cavity second harmonic generation of a continuous-wave Ytterbium doped fiber laser at 1064~nm in the nonlinear crystal of periodically poled lithium niobate and lithium triborate, respectively. With 47~W infrared input, 30~W green laser is generated through the type I critical phase matching in the intracavity lithium triborate crystal. The laser linewidth is measured to be on the order of sub-kHz, which is achieved by simultaneously locking the single-pass frequency doubling output onto the iodine absorption line R69 (36-1) at 532~nm. Furthermore, the phase locking between the laser system and another slave 1064~nm laser is demonstrated with relative frequency tunability being up to 10~GHz. Our results completely satisfy the requirements of 532~nm laser for quantum simulation with ultracold atoms.
