Fiber Visual Fault Locator

Fiber visual fault locator is 650nm (±20nm) semiconductor laser as a light emitting device, driven by a constant current source to emit stable red light, and optical interface into the fiber, so as to achieve fiber fault detection function. It is mainly used in telecom /CATV engineering and maintenance, cabling construction and maintenance, optical device production and research and other optical fiber engineering.It is also called pass-light pen, pen-type red light source, visible light detection pen, optical fiber fault detector, etc. Most of them are used to detect optical fiber breakpoints.