OPTICAL AMPLIFIER, CONTROL METHOD THEREFOR, AND OPTICAL TRANSMISSION SYSTEM

摘要

Provided are an optical amplifier, a control method therefor, and an optical transmission system which can use a simple method to correct the SRS tilt generated in a transmission path after the back stage amplifier out of two amplifiers, which amplify an input optical signal in the front stage and the back stage of a variable attenuator, in response to the frequency of the optical signal flowing in the optical path. The control parameters for controlling the two amplifiers and the attenuator are determined so as to correct the spectral slope caused by stimulated Raman scattering of the optical signal based on network information received from another device. The two amplifiers and the attenuator are then controlled in accordance with the control parameters.