中国激光, 2015, 42 (5): 0516003, 网络出版: 2015-05-06   

光纤光谱仪光路模拟优化及波长标定 下载: 527次

Fiber Spectrometer Optical Simulation Optimization and Calibration
作者单位
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
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。
Abstract
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 nm. 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.
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徐丹阳, 童建平, 高建勋, 汪飞. 光纤光谱仪光路模拟优化及波长标定[J]. 中国激光, 2015, 42(5): 0516003. Xu Danyang, Tong Jianping, Gao Jianxun, Wang Fei. Fiber Spectrometer Optical Simulation Optimization and Calibration[J]. Chinese Journal of Lasers, 2015, 42(5): 0516003.

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