Xiong Shilin, Wang Yue, Chen Jiayang, Zhang Jinxu, Wu Guanhao
Opt Lett. 2021 Aug 1;46(15):3785-3788. doi: 10.1364/OL.432461.
We propose a multi-color method for the self-correction of the air refractive index based on the dispersive interferometry of an optical frequency comb. This method can be applied to correct the air refractive index for long-distance measurements in moist air. Optical lengths of multiple wavelengths were obtained simultaneously by the dispersive interferometry of an optical frequency comb. Interferometric measurement results and calculations from the empirical equation of air refractive indices were similar, with a standard deviation of 2.0×10 throughout the 2 h continuous measurement period. By applying the multi-color method, correction of the air refractive index with an uncertainty of 3.5×10 was achieved.
我们提出了一种基于光学频率梳的色散干涉测量法的空气折射率自校正多色方法。该方法可应用于校正潮湿空气中长距离测量的空气折射率。通过光学频率梳的色散干涉测量法同时获得了多个波长的光学长度。干涉测量结果与根据空气折射率经验方程的计算结果相似，在整个2小时的连续测量期间，标准偏差为2.0×10 。通过应用多色方法，实现了不确定度为3.5×10 的空气折射率校正。
