A Miniaturized Bubble Optical Frequency Scalar Subsystem

Abstract

The invention discloses a miniaturized bubble-type optical frequency scalar subsystem, which includes a front bracket, an outer magnetic shield cover, an outer magnetic shield barrel, a front heat insulation gasket, an outer cavity, an outer heating belt, an inner magnetic shield barrel, an insulating Thermal cavity, inner magnetic screen cover, inner cavity, inner heating belt, atomic bubble, front lens holder, front lens, rear lens, rear lens holder, rear thermal insulation gasket, filter holder, interference filter Light sheet, photodetector, rear mount and outer barrel. The present invention adopts axisymmetric design for the main parts, coats the atomic bubbles, is easy to process and assemble as a whole, and has a simple optical path configuration. Through the design of the inner and outer double-layer static magnetic shielding and the inner and outer double-layer temperature control system, the influence of the static magnetic field and temperature fluctuations on the atomic transition frequency is reduced.

Description

technical field [0001] The invention relates to the field of atomic optical frequency standard devices, and more particularly relates to a miniaturized bubble-type optical frequency standard subsystem. [0002] technical background [0003] The optical frequency standard is a frequency standard that uses the stable optical band transition line of neutral atoms (or ions) as a frequency discrimination signal to implement laser frequency stabilization. Due to the extremely high spectral line Q value of the atomic transition line in the optical band, the frequency uncertainty and frequency stability of the optical frequency standard can reach the E-18 level, which makes the optical frequency standard become the future physical constant measurement, international atomic time It is the preferred atomic frequency standard in the fields of maintenance, satellite positioning and navigation, and it is very likely to replace the cesium fountain microwave frequency standard as the refere...

AI Technical Summary

Problems solved by technology

In order to realize a bubble-type optical frequency standard with a frequency uncertainty of E-13, the quantum system is required to have a stable mechanical structure, a simple optical path configuration, an efficient fluorescence collection efficiency, a good shielding of the static magnetic field, and temperature control. There are very few foreign reports on the design of miniaturized bubble-type optical frequency scalar subsystems

Images