Fiber optic connectors according to the different transmission media common silicon optical fiber can be divided into single-mode and multimode connectors, there are others, such as the following
Principle of fiber optic connectors butt
Principle of fiber optic connectors butt connectors for plastic optical fiber for transmission medium; at the connection head structure can be divided into: FC, and SC, and ST and the LC, D4, DIN, MU, MT, a variety of forms. Among them, the ST connector is typically used for wiring device-side, such as optical fiber distribution frame, optical module and SC and MT connector is typically used for the network device. Fiber shape FC, PC (including SPC or UPC) and APC; divided by optical fiber core number are single-core and multi-core (such as MT-RJ). Optical fiber connectors are widely used, variety. In the course of practical application, we generally be distinguished according to the different structure of optical fiber connector. The following are some of the common fibre connectors:
FC type fiber optic connector
This connector was first by Japan NTT research. FC is the abbreviation of Ferrule Connector shows the external strengthening is a metal, fastened to the TURNBUCKLE. First, FC type connectors used in the butt end of the pin flat contact (FC). This type of connector is simple in structure, convenient operation, easy production, but the fiber end face dust-sensitive, and prone to Fresnel reflection, improve return loss performance more difficult. Later, this type of connector is improved, butt-end surface of a spherical pin (PC), while the outer structure has not changed, the insertion loss and return loss performance has been greatly improved.
SC fiber-optic connector
This is a by Japan NTT developed the optical connector. Case rectangular, use pins and coupling sleeve dimensions identical to the FC. Which pin end surface by PC or APC grinding style; fastening method is the use of plug-pin bolt, without rotation. This type of connector is inexpensive, plug easy insertion loss less volatile, high compressive strength and high mounting density.