What is involved in "end-face preparation"?

End-face preparation is a critical step in fiber optic installation that ensures optimal performance when connecting fibers. This process involves polishing and cleaning the end surface of the fiber, which is crucial for reducing insertion loss and reflection during light transmission. A properly prepared end face allows for a smooth, reflective surface that minimizes the bending and scattering of light as it passes through the connection point.

Effective end-face preparation not only enhances signal quality but also plays a vital role in the longevity and reliability of the fiber optic connection. The precision involved in polishing involves removing any imperfections that could disrupt the light path. Additionally, cleaning the end face is necessary to eliminate any contaminants that could cause increased attenuation or reflectivity, thereby negatively impacting the fiber's performance.

Other options, while related to fiber installation, do not encompass the critical aspect of end-face preparation. Cutting the fiber to a specific length and ensuring fibers are bundled correctly are fundamental tasks in fiber management but do not directly pertain to the surface quality needed for effective connections. Testing the fiber for signal strength is an important step in evaluating performance post-installation, but it does not involve the preparation of the fiber ends. Thus, the emphasis on polishing and cleaning the fiber end face stands out as the focus of end-face preparation.