Luo Bin, Ma Rui, Ji Qianqian, Yin Longfei, Chen Jingbiao, Guo Hong
Opt Lett. 2021 Nov 1;46(21):5372-5375. doi: 10.1364/OL.442557.
As a new, to the best of our knowledge, alternative to the saturated vapor-cell-based Faraday anomalous dispersion optical filter (FADOF), the FADOF based on a hollow cathode lamp (HCL-FADOF) not only enables the FADOF to work normally at room temperature without heating, but also has some new features due to the inherent characteristics of the HCL. In this Letter, we implement an HCL-FADOF operating on the rubidium D2 line and experimentally investigate the effect of ambient temperature on its performance and cold-start characteristics. Results show that the HCL-FADOF can provide excellent stability within a large temperature range, even at temperatures below 0°C. A comparison of the start performance between the HCL-FADOF and FADOF using saturated vapor cells is also provided. This work shows unique features of the HCL-FADOF in a low-temperature environment and its quick-start advantage, which provides a solid foundation for extensive applications.
据我们所知，作为一种新型的、基于空心阴极灯的法拉第反常色散光学滤波器（HCL-FADOF），它是基于饱和蒸汽池的法拉第反常色散光学滤波器（FADOF）的替代方案。HCL-FADOF不仅能使FADOF在室温下无需加热即可正常工作，还因空心阴极灯的固有特性而具有一些新特性。在本信函中，我们实现了一个基于铷D2线工作的HCL-FADOF，并通过实验研究了环境温度对其性能和冷启动特性的影响。结果表明，HCL-FADOF即使在低于0°C的温度下，也能在较大温度范围内提供出色的稳定性。同时还对HCL-FADOF与使用饱和蒸汽池的FADOF的启动性能进行了比较。这项工作展示了HCL-FADOF在低温环境下的独特特性及其快速启动优势，为其广泛应用奠定了坚实基础。
