A Numerical Photonics library written in C++. The library includes beam propagation method, coupled mode method, Bragg Gating Analysis, transfer matrix method, and vectorial Fourier Decomposition method. Very useful in simulating integrated Photonic

对信号进行离散傅里叶变换，将信号从时域变换到频域进行分析-Discrete Fourier transform of the signal, the signal the time domain to the frequency domain analysis

附件有三个傅里叶变换的程序，都已测试，他们是可用的。并且程序的每个步骤都有详细的说明，简单易懂。(The attachment has three Fourier transform programs that have been tested and they are available. And each step of the program has a detailed descr iption easy to understand.)