Fusion splicing is a method used to join two optical fibers together. This process involves aligning the fibers precisely and then using heat to melt the ends, allowing them to fuse into a single continuous fiber. This technique is essential for maintaining the integrity of the light signal transmitted through the fibers. The fusion splicing process typically requires specialized equipment, including a fusion splicer, which automates the alignment and heating. Properly executed fusion splicing results in minimal signal loss and is crucial for high-performance fiber optic communication systems, ensuring efficient data transmission over long distances.