We demonstrate a dual-wavelength optical frequency standard based on the dual-optical-transition modulation transfer spectroscopy(DOT-MTS)between different quantum transitions of the rubidium D1(795 nm)and D2(780 nm)l...We demonstrate a dual-wavelength optical frequency standard based on the dual-optical-transition modulation transfer spectroscopy(DOT-MTS)between different quantum transitions of the rubidium D1(795 nm)and D2(780 nm)lines.In a single rubidium atomic ensemble,modulation frequency sidebands from the 780 nm pump beam are simultaneously transferred to both the 780 and 795 nm probe lasers.The DOT-MTS enables the simultaneous stabilization of 780 and 795 nm lasers on a single vapor cell.Both lasers exhibit a frequency instability in the low 10-14range at 1 s of averaging,as estimated from the residual error signal.A theoretical model is developed based on the V-type atomic level structure to illustrate the dual-wavelength spectroscopy.This approach can be extended to develop a multi-wavelength optical frequency standard within a single atomic ensemble,broadening its applicability in fields such as precision metrology,Rydberg atoms,wavelength standards,optical networks,and beyond.展开更多
基金Beijing Nova Program(20240484696)Innovation Program for Quantum Science and Technology(2021ZD0303202)Wenzhou Major Science and Technology Innovation Key Project(ZG2020046)。
文摘We demonstrate a dual-wavelength optical frequency standard based on the dual-optical-transition modulation transfer spectroscopy(DOT-MTS)between different quantum transitions of the rubidium D1(795 nm)and D2(780 nm)lines.In a single rubidium atomic ensemble,modulation frequency sidebands from the 780 nm pump beam are simultaneously transferred to both the 780 and 795 nm probe lasers.The DOT-MTS enables the simultaneous stabilization of 780 and 795 nm lasers on a single vapor cell.Both lasers exhibit a frequency instability in the low 10-14range at 1 s of averaging,as estimated from the residual error signal.A theoretical model is developed based on the V-type atomic level structure to illustrate the dual-wavelength spectroscopy.This approach can be extended to develop a multi-wavelength optical frequency standard within a single atomic ensemble,broadening its applicability in fields such as precision metrology,Rydberg atoms,wavelength standards,optical networks,and beyond.
