| 用于原子干涉仪激光频率锁定的集成化系统 |
| Integrated system for atomic interferometer laser frequency locking |
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| 中文摘要: |
| 为提升原子干涉仪的小型化程度和稳定性，研发用于原子干涉仪激光频率锁定的集成化系统。采用集成化电路系统进行稳频光谱信号采集、调制与解调，利用ZYNQ型全可编程片上系统完成数字比例微分积分（Proportion Integration Differentiation， PID）功能，实现激光频率的低噪声快速锁定。集成后的调制解调模块电路面积仅为77 mm × 113 mm，能够满足激光器锁定在大多数碱性原子能级的使用需求。开展实验对用于原子干涉仪激光频率锁定的集成化系统的性能进行验证，结果表明：激光器频率锁定后频率波动为98.81 kHz@7 h；激光频率的重新锁定时间为600 μs@100 MHz；在100 h的长期测量中未产生脱锁情况。该系统为推动原子干涉仪在地质研究和资源勘探等复杂环境下的应用提供了有力支撑。 |
| 英文摘要: |
| An integrated system for laser frequency locking of atomic interferometers was developed in order to improve the miniaturization and stability of atomic interferometers. The integrated circuit system is used for frequency stabilized spectral signal acquisition, modulation and demodulation, and ZYNQ is used to complete the digital Proportional Integration Differentiation (PID) function to realize the low?noise and fast locking of the laser frequency. The integrated modem module has a circuit area of only 77 mm × 113 mm, which is capable of meeting the laser locking requirements for use in most alkaline atomic energy stages. Experiments were conducted to verify the performance of the integrated system for laser frequency locking in atomic interferometers, and the results show that: the frequency fluctuation after laser frequency locking is 98.81 kHz@7 h; the re?locking time of the laser frequency is 600 μs@100 MHz; and there is no de?locking in a long?term measurement of 100 h. This system provides a strong support for promoting the application of atomic interferometer in complex environments such as geological research and resource exploration. |
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| 中文关键词: 原子干涉仪 激光频率锁定 集成化系统 调制转移光谱 小型化 |
| 英文关键词:atom interferometer laser frequency locking integrated system modulation transfer spectroscopy miniaturization |
| 基金项目: |
| DOI：10.11823/j.issn.1674-5795.2025.02.03 |
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