The fiber optic device for signal positive chirping by interferential method with tuning of chirp size

摘要

The device for positive chirping of a signal in a fiber optical line is offered. The device is based on two Fabry-Perot resonator with additional fiber optical cannels. If to execute the amalgamator from an erbium doped material, the device will supply amplification of a target signal, which is important for distribution access systems (for example, Radio-over-Fiber systems (RoF)). The device provides selectivity for spectral components of entrance radiation, that allows to operate of chirp. Built-in the converter of length provides in additional fiber optical cannels tuning the chirp under the given size.