As can be seen from the video, this is a fiber optic coupling device, which is a multi-mode fiber and the fiber is pluggable. The coupling optical fiber can be customized. The one used here is 100μm, 2m in length, and the interface is FC/PC. There is a buckle on the interface. When installing the optical fiber, insert the optical fiber into the buckle and tighten it.

1. 395nm 2W UV Diode Laser Coupled Optical
Fiber Output
This time we tested a 395nm 2000mW ultraviolet laser. Let's check it now.
Youtube: https://youtu.be/XeXaUdl0dJM
As can be seen from the video, this is a fiber optic coupling device, which is a multi-mode fiber
and the fiber is pluggable. The coupling optical fiber can be customized. The one used here is
100μm, 2m in length, and the interface is FC/PC. There is a buckle on the interface. When
installing the optical fiber, insert the optical fiber into the buckle and tighten it.
This laser module with radiator on the bottom and the radiator includes 2 cooling fans.

2. When the laser is working, the operating current is displayed on the laser power supply, and the
laser output power can be adjusted by rotating the button.
395nm is a near-ultraviolet laser, and a weak blue-violet light spot can be seen on the light
shielding plate.