What are the effects of temperature on fiber optic cables?

Temperature has a significant impact on fiber optic cables, particularly in terms of their performance and longevity. Fiber optic cables are designed to operate within a certain temperature range. When exposed to extreme temperatures, whether high or low, the materials used in cables, including the optical fiber and surrounding jacket, can suffer from various issues.

In high temperatures, the attenuation (loss of signal strength) in fiber optic cables can increase. This is due to thermal stresses that may affect the glass fibers and their surrounding materials, leading to potential changes in refractive index or microbending, which can further degrade performance.

On the other hand, very low temperatures can also lead to brittleness in the materials, making them more susceptible to breaking or cracking, especially during installation or when subjected to physical stress.

Therefore, recognizing that extreme temperatures can adversely affect both the operational characteristics and lifespan of fiber optic cables is essential for proper installation and maintenance. This understanding allows technicians to take preventive measures and ensure that systems remain performant throughout varying environmental conditions.