What is the purpose of the buffer coating in fiber optics?

The buffer coating in fiber optics primarily serves to protect the core during installation. Fiber optic cables consist of a core, which carries the light signals, and cladding surrounding the core. The buffer coating acts as a protective layer that absorbs shocks and provides mechanical protection to the delicate core structure, especially during handling and installation. This ensures that the core is less susceptible to damage from environmental factors, such as bending or impact, which could lead to signal loss or breakage of the fiber.

While the other options touch on significant aspects of fiber optics, the buffer coating is specifically engineered to safeguard the core. Reducing light loss is more reliant on the quality of the core and cladding, preventing contamination relates to maintaining signal integrity, and enhancing color visibility pertains to the outer casing or protective layer rather than the buffer itself. Therefore, the designated role of the buffer coating as a protective measure against physical damage during installation underscores its importance in fiber optic manufacturing and deployment.