研究目的
The aim of this work is to develop AOMs optimised for use in optical and microwave QFS's based on cold strontium, rubidium, and caesium atoms with a spectral range of 460 – 900 nm and a frequency shift range of ± (5 – 400) MHz.
研究成果
The study successfully developed a series of specialised acousto-optic modulators/frequency shifters for use in optical and microwave frequency standards based on cold atoms. The modulators exhibit high diffraction efficiency, low power consumption, and the ability to work with linearly and randomly polarised optical radiation. The findings suggest that these modulators can significantly contribute to the advancement of laser cooling and frequency stabilisation systems.
研究不足
The study is limited to the spectral range of optical radiation 460 – 900 nm and the frequency shift range of 5 – 400 MHz. The modulators are specifically designed for use in optical and microwave frequency standards based on cold strontium, rubidium, and caesium atoms.
1：Experimental Design and Method Selection:
The methodology involves the development and optimisation of acousto-optic modulators based on paratellurite (TeO2) single crystals for laser cooling and frequency stabilisation systems. The theoretical models include the calculation and optimisation of the main parameters of acousto-optic modulators.
2：Sample Selection and Data Sources:
The study focuses on the spectral range of optical radiation 460 – 900 nm and the frequency shift range of 5 – 400 MHz.
3：List of Experimental Equipment and Materials:
Specialised acousto-optic modulators/frequency shifters based on TeO2 single crystals are used.
4：Experimental Procedures and Operational Workflow:
The basic technical characteristics of the modulators are experimentally investigated, including diffraction efficiency, power consumption, and the ability to work with linearly and randomly polarised optical radiation.
5：Data Analysis Methods:
The study involves the analysis of the modulators' performance in terms of diffraction efficiency and power consumption.
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