光纤光谱仪光路模拟优化及波长标定  

Fiber Spectrometer Optical Simulation Optimization and Calibration

作　　者：徐丹阳[1] 童建平[1] 高建勋[1] 汪飞 

机构地区：[1]浙江工业大学理学院,浙江杭州310023 [2]杭州博源光电科技有限公司,浙江杭州310023

出　　处：《中国激光》2015年第5期325-329,共5页Chinese Journal of Lasers

基　　金：浙江省教育厅科研项目(Y201329607)

摘　　要：光学系统是光谱仪的核心部件,决定了整个仪器的基本性能与体积。因此分析了几种光学系统的利弊,最终确定采用交叉非对称切尔尼-特纳系统,并用Zemax软件对光路进行了优化设计,确定整体分辨率为1.8 nm,测量范围为200~900 nm。利用Matlab软件求解最小二乘法三阶多项式的拟合系数,采用HG-1汞-氩校准光源对波长进行三阶曲线拟合校正,使其相对波长误差控制在0.05 nm以内。与USB4000光纤光谱仪进行了数据对比分析,表明该设计思路及方法切实可行。The optical system is the core part of a spectrometer, and it determines the basic properties and the volume of the entire instrument. Advantages and disadvantages of several optical systems are analyzed, and the asymmetric Czerny-Turner system is adopted. The resulting optical path optimized with Zemax has an overall resolution of 1.8 nm, and a measurement range of 200-900 rim. Relative error of wavelength is controlled to be below 0.05 nm, with cubic spline interporlation coefficients obtained from Matlab and HG- 1 mercury- argon used as the calibration light source. Analyses on data for comparision with the USB4000 fiber spectrometer show that both of the design and implementation are feasible.

关 键 词：光学设计 光路 模拟优化 波长标定 

分 类 号：O433.1[机械工程—光学工程] O435[理学—光学]