Miniaturized bubble type optical frequency standard quantum system

Abstract

The invention discloses a miniaturized bubble type optical frequency standard quantum system. The device comprises a front support, an outer magnetic screen cover, an outer magnetic screen cylinder, afront heat insulation gasket, an outer cavity, an outer heating band, an inner magnetic screen cylinder, a heat insulation cavity, an inner magnetic screen cover, an inner cavity, an inner heating band, an atomic bulb, a front lens support, a front lens, a rear lens, a rear lens support, a rear heat insulation gasket, an optical filter support, an interference optical filter, a photoelectric detector. Main parts are designed in an axial symmetry mode, atomic bubble coating is conducted, machining and overall assembling are easy, and the light path configuration is simple. By designing inner and outer double-layer static magnetic shielding and inner and outer double-layer temperature control systems, the influence of a static magnetic field and temperature fluctuation on atomic transitionfrequency 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

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