The theory of non-preset fiber splice site splice connector splices set ferrule surface field optical fiber cutting surface and connectors pre-grinding fiber spherical continue, in only one connection point between the activities of the two fiber connection into side technology. Preset fiber splice theory is the site connecting the connector connecting the point to set the V-shaped slot inside the connector, preset fiber glued in on one end of the mortise in the other end of the scene fiber cut surface of the V-shaped slot alignment crimp splices placed in the refractive index of the approximate core of the light guide material - matching fluid preset fiber plastic connected to the ferrule in the end, after the factory grinding, forming the UPC or APC pre-grinding surface, and the target connector spherical optical fiber connection to continue, in the activities of the two fiber connections between the two connection points of side technology.

Site cutting the fiber by high-precision ceramic ferrule and optical fiber in the casing and connector fiber alignment, the scene cutting the fiber is fixed in a V-shaped slot after the quick connector ferrule, on-site fiber cutting surface with ordinary connector pre-grinding fiber spherical field optical micro-elastic deformation close to the field optical fiber cutting surface to be treated do not have to set the matching fluid between splices.

Guide fiber core is made by the light guide material with high refractive index, material density, and high purity. The cladding of the fiber made by the low-refractive index light guide material, including step-and graded categories, its cladding and even deliberately made up of pores or other structures, thereby reducing the refractive index. The optical fiber cutting, cutting defects in the cladding region, core fracture surface, the surface is very smooth, mirror, and far from grinding effects can be compared. Flat, fiber cut surface fully meet the fiber splicing requirements.