【摘要】 利用高分辨率光谱分析仪对空气隙F P标准具透射谐振峰频率进行测量 ,然后通过直线拟合获得自由谱域 ,从而计算得出F P标准具的间距。对F P标准具间距测量的精度进行分析 ,F P标准具间距测量的相对误差为2× 10 -3 。提出了一种新颖的入射光与F P标准具垂直的精确调节方法更多还原

【Abstract】 In this paper, a method was reported that used a high precision optical spectrum analyzer to measure transmission resonant frequency of air gap F P etalon and got its free spectrum range by linear fitting. The spacing of F P etalon was calculated based on this. The measuring precision of this method was analyzed, which showed that the relative error of F P etalon spacing measurement was 2×10 -3 . A novel method of F P etalon perpendicularity adjusting was introduced as well.更多还原