Which environmental factor could affect the performance of fiber optics?

Temperature extremes can significantly impact the performance of fiber optic cables. Fiber optic material, typically made from glass or plastic, has specific temperature ranges within which they operate optimally. When fibers are exposed to extreme temperatures, both high and low, they can experience changes in physical properties, which may result in increased attenuation, reduced signal quality, and potential damage over time.

High temperatures can cause the materials in the fiber to expand or soften, leading to the risk of bending or micro-bending, which affects signal transmission. Conversely, low temperatures can make materials brittle, increasing the likelihood of fractures or breaks under stress. Understanding and accounting for temperature extremes is crucial in planning the installation and maintenance of fiber optic systems, particularly in environments subject to large temperature variations.