Remijan P W
Appl Opt. 1972 Dec 1;11(12):2783-9. doi: 10.1364/AO.11.002783.
A fiber optics image-transferring element is nonisoplanatic over a surface region containing only a few fundamental resolution elements, and no meaningful or consistent evaluation of a fiber optics image can be made by examining such a nonisoplanatic region. A holographic scheme offers a solution to the problem of fiber optics image evaluation based upon examination of a nonisoplanatic region. Interfering plane waves are used to create a sinusoidal irradiance distribution that is continuous over the entire fiber optics input surface. Subsequent holographic evaluation of the photographically recorded input and output yields values of a statistical MTF by comparing the amplitude of a sinusoidal input to the average amplitude of the sinusoidal output component. The design and operation of such a holographic system is presented, and an experiment that demonstrates the advantages of the holographic measurement is discussed.
光纤图像传输元件在仅包含少数基本分辨率元件的表面区域上是非等晕的，并且通过检查这样一个非等晕区域无法对光纤图像进行有意义或一致的评估。全息方案为基于对非等晕区域的检查来评估光纤图像的问题提供了一种解决方案。干涉平面波用于创建在整个光纤输入表面上连续的正弦辐照度分布。通过将正弦输入的幅度与正弦输出分量的平均幅度进行比较，对记录在照片上的输入和输出进行后续全息评估，得出统计调制传递函数（MTF）的值。本文介绍了这种全息系统的设计和操作，并讨论了一个证明全息测量优势的实验。
