机构地区: 深圳大学电子科学与技术学院
出 处: 《光学学报》 2008年第9期1735-1739,共5页
摘 要: 基于微光学与二元光学技术,设计了一种新型的平面折叠式光学相关器,将相关器中组成4f系统的傅里叶变换透镜、全息匹配滤波器、输入面和输出面集成到一个平面器件上,与另一平面偏振反射镜构成一个反射型的平面光学系统。讨论了相关器的系统结构设计、系统参数的设计,给出了具体的设计模型,计算出其体积可减小至约12 cm3。利用菲涅耳衍射数值模拟方法对系统的图像识别过程进行了仿真,得到了良好的相关输出结果,证实平面集成光学相关器具有很好的识别性能。 Novel planar folding optical correlator is proposed by means of micro-optical and binary optical techniques. The Fourier transform lenses, holographic matched filter, input plane and output plane are integrated on a common planar element. A reflective planar optical system is constructed by the correlator and a planar polarized mirror. The system structure and parameter design of this planar system are described, and a concrete model is proposed, with its volume reduced to about 12 cm^2 . At last, image recognition process of this correlator is simulated by using Fresnel diffractive method and gains excellent results, which proves the recognition capability of the system.
关 键 词: 集成光学 光学相关器 计算全息匹配滤波器 空间光调制器 二元光学
领 域: [电子电信]