VCSEL mirror design. periodic boundary conditions to approximate a periodic one-dimensional delta function potential with period 10 nm by considering eight potential barriers with energy 20 eV and width 0.25 nm.

角谱--信号通过VCSEL注入光纤时，因为需要透镜耦合，所以光信号首先进入空气后再进入光纤，在空气中需要对信号进行空间FFT变换-Angular spectrum

角谱--VCSEL发出的光，经过透镜耦合进入光纤，仿真给出光由VCSEL进过透镜进入光纤的过程-Angular spectrum

VCSEL激光器程序，高速传输性能，精细可以使用。经过验证(VCSEL laser program, high-speed transmission performance, fine, can be used. Verified)