远距离数字离轴全息系统设计和实验分析  

Design and Experimental Analysis of the Long Distance Digital Off-axis Holography

作　　者：杨旭 陈波 李小阳 孙天齐 

机构地区：[1]华北理工大学电气工程学院,河北唐山063009

出　　处：《激光杂志》2016年第10期74-77,共4页Laser Journal

基　　金：河北省高等学校科学研究项目(QN2014042);河北省自然科学基金(F2013209149)

摘　　要：针对远距离数字离轴全息系统,分析了系统中本地参考光入射角度应满足的条件,给出了简便的设计依据,并进行了实验验证。首先简要分析了远距离数字离轴全息成像系统的原理,然后从全息图数字记录和频谱分离两个方面,详细分析了本地参考光入射角度与光电探测器像素大小、目标光角度之间的关系。在此基础上,建立了数字离轴全息实验装置,根据目标和CCD探测器的参数,按照分析得到的设计依据对参考光入射角度进行了设计。实验结果表明该设计依据简单、适用性好。Considering the long-distance digital off-axis holography, the restrictions on the incident angle of local reference beam in the system is analyzed, and a simple design basis is given and vivificated experimentally. Firstly, the principle of long distance digital off-axis holographic imaging system is analyzed. Then, from the two aspects of digital recording and spectrum separation, the relationship among the incident angle of the local reference light and the pixel size of the photoelectric detector and the target light angle are analyzed in detail. On this basis, the digital offaxis holography experiment device is set up. According to the parameters of the target and the CCD detector, the reference light incident angle is designed according to the design basis deduced above. The experimental results show that the design basis is simple and practicable.

关 键 词：全息 远距离 参考光 入射角度 

分 类 号：TN26[电子电信—物理电子学]