Low-temperature-sensitivity pulse laser pumping rubidium-clock physical system

Abstract

Provided is a low-temperature-sensitivity pulse laser pumping rubidium-clock physical system. The low-temperature-sensitivity pulse laser pumping rubidium-clock physical system comprises a rubidium bubble, a magnetron microwave cavity, an end cover, cut-off waveguide, a thermal layer, magnetic shielding tubes, heating barrels and the like. Three layers of heating barrels and three layers of magnetic shielding tubes are arranged in the whole physical system at intervals, and space among the heating barrels are filed with a thermal material with low thermal conductivity; the small-sized magnetron microwave cavity is adopted, one end of the microwave cavity is provided with the cut-off waveguide, and the other end of the microwave cavity is provided with the end cover; the tail of the rubidium bubble is arranged on the end face of a rubidium gas cell, the size of the tail of the rubidium bubble is far smaller than that of the rubidium gas cell, and the wall of the rubidium bubble is arranged at the inner wall of a pole piece of the magnetron microwave cavity. The low-temperature-sensitivity pulse laser pumping rubidium-clock physical system has the advantages of being compact in structure, easy to debug, high in signal to noise ratio, low in temperature sensibility and the like, the temperature sensibility of the physical system can be remarkably reduced, and long-term frequency stability of a pulse laser pumping rubidium-clock at the air environment and the vacuum environment is improved.

Description

technical field [0001] The invention belongs to the technical field of bubble-type atomic clocks, and in particular relates to a low-temperature-sensitivity pulsed laser-pumped rubidium clock physical system. Background technique [0002] The rubidium clock pumped by the spectrum lamp has the advantages of small size, light weight, and low cost. It is widely used in satellite navigation, time transfer, communication and other fields. Further improving the stability of the rubidium clock will help improve the accuracy of navigation positioning and time transfer. The pulsed laser-pumped rubidium clock uses a laser instead of a rubidium spectrum lamp, and separates the optical pumping, microwave interrogation, and optical detection processes in the time domain, which not only has a higher signal-to-noise ratio, but also avoids the optical frequency shift effect, so it has a relatively Great performance potential. [0003] The temperature sensitivity of the physical system is o...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the deficiency of high temperature sensitivity of the pulsed laser pumped rubidium clock physical system, and provide a design scheme of the pulsed laser pumped rubidium clock physical system with compact structure, high signal-to-noise ratio and low temperature sensitivity

Images