Fiber optic connectors are the core components that enable detachable connections in fiber optic communication systems. Their main structures include pins, coupling tubes, and flanges, which are precisely ground to achieve fiber end face docking. The following are common types and structures that use metal thread fixation. The outer layer is a metal sleeve, and the fastening method is a screw buckle. It supports high stability connection, high temperature resistance, and strong corrosion resistance. It is suitable for long-distance single square push-pull design, made of engineering plastic material. The plug-in connection does not require tools, and the structure is compact and low-cost. It is suitable for network equipment such as routers and switches. Small card type structure, with a volume only one-third of SC, supports high-density wiring, with insertion loss as low as 0.5dB, commonly used in data centers and low rate optical modules. ST type snap fit circular connector, which requires rotation and fixation, was originally used for traditional multi-mode networks such as campus networks and monitoring systems.
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