发表机构
State Key Laboratory of Precision Spectroscopy, East China Normal University（精密光谱学国家重点实验室，华东师范大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究基于171Yb光晶格钟，通过光频梳实现高精度光分频，研制出频率不确定度达1.3E-17的光频率合成器，可产生高稳定高精度的单频激光。
AI 中文摘要
我们报告了一种高精度光频率合成器，它能在宽光学范围内的所需频率处产生具有高频率稳定性和精度的单频激光。输出信号的频率通过基于光频梳的高精度光分频器从171Yb光晶格钟分频得到，因此该光频率合成器的输出继承了Yb光钟的频率精度。171Yb光晶格钟的频率不确定度经评估为6.8 mHz，对应分数频率不确定度为1.3E-17，其主要受黑体辐射频移和晶格诱导光频移的限制。
英文摘要
We report an accurate optical frequency synthesizer, which can generate single-frequency laser light with high frequency stability and accuracy at desired frequencies over a wide optical region. The frequency of the output signal is divided from an 171Yb optical lattice clock via an accurate optical frequency divider based on an optical frequency comb. Therefore, the output of the optical frequency synthesizer inherits the frequency accuracy from the Yb optical clock. The frequency uncertainty of the 171Yb optical lattice clock is evaluated to be 6.8 mHz, corresponding to a fractional frequency uncertainty of 1.3E-17, mainly limited by the blackbody radiation shift and the lattice-induced light shift.
