Raman amplification is a way of increasing the signal strength in an optical fiber. It is often used in a fiber that carries a signal for a long distance (such as in an undersea cable). Technically, it works by stimulating, in which a lower frequency 'signal' induces of a higher-frequency 'pump' photon in an optical medium in the nonlinear regime. As a result, another 'signal' photon is produced, with the surplus energy resonantly passed to the vibrational states of the.
The primary purpose of a fiber termination box is to serve as a termination point for optical fiber cables in the field and facilitate the connection of these cables to fiber pigtails through splicing. It serves as the primary interface for terminating, splicing, and connecting the main fiber optic cable to individual distribution pigtails.
