这是光学激光仿真相关书籍的源代码，里面有全面的关于激光器以及介质仿真的基本代码，这是第一部分的内容，总共有6个部分。-This is the simulation of the optical laser source code related books, which has comprehensive information regarding the lasers and media simulation of the basic code, which is the first part of a total of six sections.