Fiber optic connectors are commonly called optical fiber connectors or simply fiber connectors, with popular types including SC, LC, ST, and FC.

Fiber optic connectors, also referred to as terminations, are mechanical devices used to join optical fibers where a connect/disconnect capability is required, allowing light to pass through with minimal loss . They are essential in telecommunications, data centers, and enterprise networks for precise alignment and efficient signal transmission .

Popular Connector Types

• SC (Subscriber Connector or Standard Connector): Square-shaped with a push-pull mechanism, widely used in FTTH deployments, data centers, and CATV networks .
• LC (Lucent Connector): Smaller form factor with a 1.25mm ferrule, ideal for high-density applications and modern data centers .
• ST (Straight Tip): Features a bayonet-style twist-lock, commonly used in legacy systems and industrial environments .
• FC (Ferrule Connector): Threaded coupling for secure connections in high-vibration environments like factories or railway networks .
• MPO/MTP: Multi-fiber connectors used for high-density cabling and backbone networks . These connectors are sometimes collectively called fiber terminations or simply fiber connectors, and they are designed to ensure precise alignment of the fiber cores, minimize signal loss, and allow easy connection and disconnection compared to permanent splicing .