What is the purpose of a fiber optic splice closure?

The purpose of a fiber optic splice closure is to protect fiber optic splices from environmental factors. These closures are designed to provide a secure and sealed environment for the splices, safeguarding them against moisture, dust, temperature fluctuations, and other potentially damaging elements. By keeping the splices safe from these external conditions, the integrity and performance of the optical fiber connections are maintained.

In addition, while increasing signal strength, filtering light, or reducing splice loss may be important objectives in fiber optic systems, they are not the primary functions of a splice closure. Instead, these closures focus specifically on safeguarding the splices, ensuring that the connections remain reliable and effective over time. Thus, option B accurately captures the fundamental role of a fiber optic splice closure in maintaining the performance and longevity of fiber optic systems.