A transportable optical lattice clock at the National Time Service Center

Kong De-Huan^{1, 2}, Wang Zhi-Hui³, Guo Feng^{1, 2}, Zhang Qiang^{1, 2}, Lu Xiao-Tong^{1, 2}, Wang Ye-Bing¹, Chang Hong^{1, 2, †}

Differential frequency instability evaluation of the transportable optical clock. The black solid squares show the Allan deviation of the time interleaved self-comparison measurements. The Allan deviation fits to 3.6 × 10^–15/τ^1/2 (red solid line).