What are the two parts of fiber optic cable splicing

The two main parts of fiber optic cable splicing are fusion splicing and mechanical splicing.Fiber optic cable splicing is the process of joining two optical fibers end-to-end to create a continuous optical path. The two primary methods are: 1. Fusion Splicing Fusion splicing involves permanently joining two fiber ends by melting them together using an electric arc. This method creates the strongest and most reliable joint with the lowest signal loss, typically less than 0.1 dB, and minimal back reflection. Fusion splicing requires a fusion splicer, a precision machine that aligns the fiber cores and controls the arc. It is widely used for single-mode fibers, long-haul networks, and mission-critical applications where signal integrity is essential . 2. Mechanical Splicing Mechanical splicing aligns two fiber ends within a small housing using an index-matching gel to bridge the microscopic gap between the fibers. The fibers are held in place mechanically rather than fused, allowing light to pass through with minimal reflection. Mechanical splices are faster, require less equipment, and are suitable for temporary repairs or short-distance applications, but they generally have slightly higher signal loss (0.2–0.75 dB) and are less durable over time compared to fusion splices . Both methods are preferred over connectors for permanent fiber joins because they provide lower insertion loss and better optical performance. Fusion splicing is ideal for permanent, high-performance installations, while mechanical splicing is often used for quick repairs, temporary connections, or multimode fibers .