Fiber jumper (also called optical fiber connector) refers to the cable connector plug is installed on both ends, used to achieve the optical path are movably connected; one end is provided with a plug is called pigtail.

optical fiber jumper (Optical Fiber Patch Cord/Cable) and similar to coaxial cable, but no net shielding layer. The center is the core of light transmission glass. In multimode fibers, the diameter of the core is 50 mu m~65 mu m, roughly and human hair thickness is quite.

While the single mode fiber core diameter of 8 mu m~10 mu m. The core is surrounded by a layer of glass envelope refractive index than the core low, in order to make the optical fiber holding in the core. Outside is a thin layer of plastic jacket, used to protect the envelope.