微型光纤光谱仪的波长定标分析  

Wavelength calibration for miniature fiber optical spectrometers

作　　者：武传龙[1] 冯国英[1] 韩旭[1] 姜海涛[1] 欧群飞[1] 王建军[2] 李密 

机构地区：[1]四川大学电子信息学院,成都610064 [2]中国工程物理研究院激光聚变研究中心,绵阳621900 [3]究院应用电子学研究所,绵阳621900

出　　处：《激光技术》2012年第5期682-685,共4页Laser Technology

基　　金：国家自然科学基金资助项目(60890200;10976017;10876022);固体激光技术国家级重点实验室基金资助项目

摘　　要：为了提高光纤光谱仪的测量精度,采用标准汞氩灯谱线和最小二乘法的3阶线性拟合,取得了完整的波长定标方案。结果表明,算术平均误差小于0.167nm,标准差小于0.217nm,波长与像素的拟合相关程度较高;定标后波长不确定度优于0.11nm,误差小于0.15nm,波长重复性可达0.01nm。这一结果对提高光谱仪实际应用中的测量精度是非常有益的。In order to improve the measurement accuracy of the miniature fiber spectrometer, a complete calibration scheme was obtained based on the standard emission spectrum of mercury and argon lamp and three-order linear fitting of the least squares. Calibration results show that the arithmetic mean error is less than O. 167nm, standard deviation is less than 0. 217nm and the fitting related degree is high. Test results show that after calibration the wavelength uncertainty is better than the 0. llnm, the error is less than 0. 15nm, and the wavelength repeatability can reach 0.01nm. This result is beneficial for improving the measurement precision of spectrometers in the practical applications.

关 键 词：光谱学 波长定标 最小二乘 光纤光谱仪 

分 类 号：TH744.1[机械工程—光学工程]