本文提出了一种利用光学符号代换法则和脉动进位原理实现进位超前的光学多比特全加(减)器,其特点是不需要任何实时器件来存储中间结果,所以结构简单、速度快,并且可以实现由多比特二进制数所组成的矩阵间的加(减)法。 In this paper, an optical multi-bit all-add (subtractor) based on the principle of optical symbol substitution and the principle of ripple carry is proposed, which is characterized by no need of any real-time device to store the intermediate result, so the structure is simple, fast and Can be achieved by the multi-bit binary number consisting of matrix between the addition and subtraction method.