Plug-and-play acousto-optic frequency shift device

Abstract

The invention discloses a plug-and-play type acousto-optic frequency shift device. Including a main frame, wherein the first acousto-optic frequency shift unit, the second acousto-optic frequency shift unit and the third acousto-optic frequency shift unit are arranged on the main frame. A first group and a second group of multi-pass frequency shift and monitoring basic units of the first acousto-optic frequency shift unit; the fifth to seventh groups of multi-pass frequency shift and monitoring basic units of the second acousto-optic frequency shift unit and the eighth and ninth groups of multi-pass frequency shift and monitoring basic units of the third acousto-optic frequency shift unit respectively comprise an acousto-optic frequency shifter, a frequency shifter lens, a frequency shifter reflector and a frequency shifter fixed phase delay piece which are sequentially distributed. On one hand, the problems that a traditional optical platform light path is lack of standards, poor in stability, large in occupied space, incapable of being carried and backed up and the like are solved, and on the other hand, the problems that a special instrument light path is poor in upgradability,poor in replaceability, narrow in application range and the like are solved.

Description

technical field [0001] The invention is based on the research field of atomic and molecular photophysics, especially relates to the field of cold atomic physics, and specifically relates to an acousto-optic frequency shifting device for a modular optical system. Background technique [0002] At present, in the field of atomic and molecular photophysics research, the optical system used in laboratory scientific research is generally a traditional optical path structure with a platform plus an adjustment frame; while the optical path used in the field of practical application is mostly an integrated box optical system, as shown in the literature (Compact portable laser system for mobile cold atom gravimeters, Xiaowei Zhang et al., Applied optics, Vol. 57, pp. 6545-6552, 2018). The optical path in the laboratory often needs to be upgraded with the in-depth exploration of physical problems; in the field of precision measurement, as the requirements for measurement accuracy conti...

AI Technical Summary

Problems solved by technology

On the one hand, the traditional optical system in the laboratory has the advantages of being flexible for improvement and upgrading, but at the same time it faces the following four problems: 1. Due to the lack of standards, its optical structure varies from person to person, and the repeatability is poor. High-standard research requires extremely skilled personnel. High, which leads to long research cycle and low efficiency; 2. The traditional optical system is built on the platform, and most of them are connected by screws. Environmental fluctuations lead to fluctuations in the performance of the optical system, and poor stability affects long-term continuous measurement; 3. Traditional optical systems take up space It is not conducive to the construction of large-scale optical systems; 4. When the experimental system is adjusted and improved, it often faces the problem of rebuilding the entire system, which is time-consuming and laborious

The experimental conditions are difficult and complex, and it is very difficult to adjust the traditional optical path under these conditions

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