这里介绍相干光学计算机的最重要的几种应用。在这绝大多数的应用中取其光学傅里叶变换特性优点,有些把这种特性和光学系统计算二维或多信道相关函数的能力结合起来。在绝大多数情况中,光学系统能完成乘法和积分。输出信号换能器的作用主要是在输出平面内电磁场的平方律探测。对这种作用的一个重要例外是,输出探测器本身就能完成乘法和积分,而有关透镜系统主要是均匀照明输入换能器和把输入信号衍射的光指向输出探测器。这种例外就是同频外差相 Here are some of the most important applications of coherent optical computers. In most of these applications, the advantages of optical Fourier transform are taken into account, and some combine this with the ability of the optical system to compute two-dimensional or multi-channel correlation functions. In the vast majority of cases, the optical system can perform multiplication and integration. The role of the output signal transducer is mainly the square law of the electromagnetic field in the output plane. An important exception to this effect is that the output detector itself performs the multiplication and integration, while the lens systems concerned primarily illuminate the input transducer and direct the light diffracted by the input signal toward the output detector. This exception is the same frequency heterodyne phase