It's a 1550nm Nanosecond laser. The laser can be controlled by the buttons on the panel or by software. The signal source can be selected from internal trigger and external trigger. The laser currently tested is an internal trigger model. We can control the signal parameters through the buttons on the panel. The pulse width 5~30 Nanosecond adjustable. The repetition frequency is adjustable from 1 to 100KHz. Let's check it now.