Strontium optical lattice clock at the National Time Service Center

Wang Ye-Bing^{1, 2}, Yin Mo-Juan¹, Ren Jie¹, Xu Qin-Fang¹, Lu Ben-Quan^{1, 2}, Han Jian-Xin^{1, 2}, Guo Yang^{1, 2}, Chang Hong^{1, †}

(color online) Top view of the experimental setup. M1: 0°-high-reflection mirror at 461 nm and 689 nm; M2: 0°-high-reflection mirror at 461 nm, 679 nm, and 707 nm; DM1: 0°-dichroic mirror with a high reflection at 813 nm and high transmittance at 698 nm.