论文标题
紧凑型插头和播放基于Rubidium Vapor多普勒光谱的光学频率参考设备
Compact Plug and Play Optical Frequency Reference Device Based on Doppler-Free Spectroscopy of Rubidium Vapor
论文作者
论文摘要
光学频率参考的紧凑性，鲁棒性和自主性是在移动系统，地面和太空中可靠操作的先决条件。我们提出了一个独立的插头和播放光学频率参考设备，该设备基于780 nm处Rubidium中D2型转换的频率调制光谱。单个按钮按下手动尺寸激光模块后，基于[J.选择。 Soc。是。 b 38，1885-1891（2021）]，工作完全自主，并生成6兆瓦的稳定光，在1 s时相对频率不稳定性为1.4e-12，在1e5 s平均时间下1E-11以下。我们描述了设备的设计，研究影响输出频率的热特性，并通过改变调制参数的贝叶斯优化器来改善短期频率稳定性。
Compactness, robustness and autonomy of optical frequency references are prerequisites for reliable operation in mobile systems, on ground as well as in space. We present a standalone plug and play optical frequency reference device based on frequency modulation spectroscopy of the D2-transition in rubidium at 780 nm. After a single button press the hand-sized laser module, based on the micro-integrated laser-optical bench described in [J. Opt. Soc. Am. B 38, 1885-1891 (2021)], works fully autonomous and generates 6 mW of frequency stabilized light with a relative frequency instability of 1.4e-12 at 1 s and below 1e-11 at 1e5 s averaging time. We describe the design of the device, investigate the thermal characteristics affecting the output frequency and demonstrate short-term frequency stability improvement by a Bayesian optimizer varying the modulation parameters.
