激光通信，通过发送不同占空比的脉冲波来实现数据0和1的发送。在接收端通过捕获来检测信号的占空比，从而检测出0和1信号，最终实现信号的光传输。-Laser communication, by sending different pulse duty cycle to achieve transmit 0 and 1 data. At the receiving end is detected by capturing the duty cycle signal to detect the sign