公开(公告)号：US20240243543A1

公开(公告)日：2024-07-18

申请号：US18097963

申请日：2023-01-17

Applicant: ADVA Optical Networking SE

Inventor： Patrick Berthoud ,  Manuel Haldimann ,  Vladimir Dolgovskiy

IPC: H01S3/13 ,  H03L7/26

CPC classification number: H01S3/1305 ,  H01S3/1303 ,  H03L7/26

Abstract: A method for compensating a reference frequency shift due to an interaction of resonant light provided by a resonant light source with atoms of an atomic beam crossing a resonant microwave cavity between light interaction zones includes toggling a wavelength of the provided resonant light between a main optical pumping transition, OPT1, and an alternate optical pumping transition, OPT2, of the atoms of the atomic beam while a frequency of the microwave probe signal fed into the microwave cavity is modulated with a frequency modulation depth, FMD. The method further includes computing a wavelength modulation compensation error signal, WM-CES depending on the measured signal amplitudes of Ramsey fringes used to control the frequency of the microwave probe signal fed into the microwave cavity.