The main purpose of fiber optic connectors is to achieve the connection of optical fibers. Fiber optic connectors, which have been widely used in fiber optic communication systems, have a wide variety of types and different structures. But upon closer examination, the basic structure of various types of fiber optic connectors is consistent, that is, the vast majority of fiber optic connectors generally use high-precision components (consisting of two pins and a coupling tube in three parts) to achieve fiber alignment and connection.
This method involves threading and fixing optical fibers into the pins, polishing the surface of the pins, and aligning them in the coupling tube. The external components of the pin are made of metal or non-metal materials. The docking end of the pin must be ground, and the other end is usually supported by a bending limiting component to release stress on the fiber or fiber optic cable. Coupling tubes are generally made of two semi synthetic, tightly fastened cylindrical components made of materials such as ceramics or bronze, and are often equipped with metal or plastic flanges to facilitate the installation and fixation of connectors. To align the optical fiber as accurately as possible, high precision is required for the machining of the pins and coupling tubes.