This study investigates the application of miniature quantum references within small-scale optical atomic frequency standards,utilizing a diminutive^(87)Rb glass cell,dimensions of 6 mm×6 mm×6 mm,to establis...This study investigates the application of miniature quantum references within small-scale optical atomic frequency standards,utilizing a diminutive^(87)Rb glass cell,dimensions of 6 mm×6 mm×6 mm,to establish a quantum frequency standard.'By employing the transition spectrum from 5^(2)S_(1/2)F=2 to 5^(2)P_(3/2)F=3,this study successfully demonstrates the development of a compact rubidium atomic optical frequency standard via modulation transfer spectroscopy(MTS).Subsequent to frequency stabilization,the 780 nm clock laser exhibits a linewidth of 6.9 k Hz,and its out-of-loop short-term stability reaches4.1×10^(-13)@1 s,as confirmed through beat frequency analysis.This research not only provides a practical blueprint for the development of small optical atomic frequency standards but also lays down essential groundwork for future advancements in chip-level optical frequency standard technologies.展开更多
文摘This study investigates the application of miniature quantum references within small-scale optical atomic frequency standards,utilizing a diminutive^(87)Rb glass cell,dimensions of 6 mm×6 mm×6 mm,to establish a quantum frequency standard.'By employing the transition spectrum from 5^(2)S_(1/2)F=2 to 5^(2)P_(3/2)F=3,this study successfully demonstrates the development of a compact rubidium atomic optical frequency standard via modulation transfer spectroscopy(MTS).Subsequent to frequency stabilization,the 780 nm clock laser exhibits a linewidth of 6.9 k Hz,and its out-of-loop short-term stability reaches4.1×10^(-13)@1 s,as confirmed through beat frequency analysis.This research not only provides a practical blueprint for the development of small optical atomic frequency standards but also lays down essential groundwork for future advancements in chip-level optical frequency standard technologies.
