We have assessed the effect of optical lattice laser field parameters (polarisation, intensity, and wavelength) of a cold-ytterbium atomic frequency standard on the systematic uncertainty of precision clock transition frequency measurements. The spectrum and polarisation of the laser field of the lattice have been investigated in detail directly in the spatial region of interaction of cold ytterbium atoms with the laser field. The Stark shift of the clock transition in the vicinity of the magic wavelength of the laser has been estimated as a function of the experimentally measured laser field intensity in the dipole approximation. The estimates have been used to calculate the residual systematic uncertainty in the light shift of the optical lattice laser frequency.

我们已经评估了冷镱原子频率标准的光学晶格激光场参数（偏振、强度和波长）对精密时钟过渡频率测量的系统不确定性的影响。已经在冷镱原子与激光场相互作用的空间区域中直接详细研究了晶格激光场的光谱和偏振。在激光的神奇波长附近，时钟跃迁的斯塔克位移已被估计为偶极子近似中实验测量的激光场强度的函数。这些估计已被用于计算光学晶格激光频率的光移中的残余系统不确定性。