Which of the following best describes fusion splicing?

Fusion splicing is a technique that employs heat to permanently join two fiber optic cables together. This process involves aligning the ends of the fibers with precision so that the light can pass through with minimal loss. The use of heat effectively melts the glass fibers at their ends, allowing them to fuse together as they cool, creating a strong and effective connection.

This permanent connection is essential for maintaining signal integrity in fiber optic systems, as it provides a seamless pathway for light transmission with very low attenuation. The splicing process usually requires specialized equipment, such as a fusion splicer, which ensures that the fibers are aligned properly and that the heat is applied uniformly.

Understanding the nature of fusion splicing is crucial for fiber optics professionals, as it highlights the importance of methodical techniques in installing and maintaining fiber optic networks efficiently.