This is a 395nm 200mW Blue-violet laser source. Adjust the current through the knob to adjust the output power. The laser power supply has an LED display that displays the working current.
395nm is blue-violet light, which is long-wave ultraviolet laser. It is almost beyond the visible range of the human eye, so the light spot looks relatively weak. On the observation card, the light spot is relatively bright.
The 395nm semiconductor laser can provide multi-mode or polarization-maintaining fiber coupling output.
The data sheet of this laser.
