Fiber optic splicing is the process of joining two optical fibers end-to-end. Unlike using connectors, which are designed for frequent connection and disconnection at patch panels, splicing creates a permanent, stable joint with minimal light loss. Splicing is typically required during cable installation, maintenance, or network expansion. Whether in data centers, telecom rooms, or outdoor FTTx deployments, proper splicing inside a fiber enclosure ensures low signal loss, long-term stability, and easy maintenance.