基于非扫描式干涉仪的光谱探测研究  

Research on Spectrum Detection with Non-Scanning Spectrometer

作　　者：余本国[1] 王建中[1] 

机构地区：[1]中北大学信息与通信工程学院,山西太原030051

出　　处：《光学学报》2010年第7期2001-2005,共5页Acta Optica Sinica

基　　金：国家自然科学基金(20051203JJ)资助课题

摘　　要：探测视场的大小是激光预警性能好坏的一个重要指标。在采用非扫描式傅里叶变换干涉仪探测激光光谱的实验基础上,计算了在60°视场范围内激光以任意角度入射时关于入射角度与相干位置的光程差函数,推导了干涉条纹间距与入射角度及波长的方程组,提出了采用两个干涉仪在垂直角度下运算求解的方法。经仿真计算可知,随入射角度的变化而造成干涉条纹变密、亮带变细和波长偏移等结果。实验证明,干涉条纹计算和仿真结果与实验相符,在较宽的视场范围内可以有效探测激光光谱信息,求解激光入射方向的最高精度可达1°。The field of view of the laser warning system is an important target of its performance quality.The laser spectrum based on the non-scanning Fourier transformation interferometer in the experiment foundation is imsestigated,The path difference function about the incident angle and the coherent position′s is calculated for any angle laser incidences in the field of view in 60°.The two non-scanning Fourier transformation interferometers method is proposed to solve under the vertical angle.According to the simulation experimention,it is found that the interference fringes changes dense,bright band thinning,and wavelength faraway when the incident angle′s changes.The experiment proves that the interference fringe computation and the simulation result is coincident,the laser warning system may detect the laser spectrum information effectively in the wide field of view,and the highest precision of laser incidence direction may reach 1°.

关 键 词：探测器 激光光谱探测 非扫描式傅里叶变换干涉仪 视场 

分 类 号：O657.3[理学—分析化学]