The telecommunications system optical channel analyzer for transmission signals multiplexed by the wavelength division.Process for filtering an optical signal in a wave band and for the monitoring of channels for transmission signals multiplexed by the wavelength division, and,Optical amplifier with gain control

摘要

"Telecommunications system optical channel analyzer for transmission signals multiplexed by the wavelength division.Process for filtering an optical signal in a wave band and for the monitoring of channels for transmission signals multiplexed by the wavelength division, and,Optical amplifier with gain control in optical telecommunications system, comprising a relay station generates transmission signals (1a,1b) in a minimum of two predetermined wavelengths, a wavelength division multiplexer (3a)(b) for shipment of said transmission signals along a line of optical fiber, and at least one power amplifier (5a, 5b), a station for receipt of said transmission signals.Comprising at least a pre amplifier (7a, 7b) of a device (8a, 8b) for the selective separation of signals and a receiver (2a, 2b) of said transmission signals.A plurality of stations (6a, 6b) for amplification of the optical signal, arranged along a line of optical fiber that connects the relay station to the receiving station.And a control unit (18) disposed in each station of the line.This system also includes analyzers optical channel (50) arranged downstream of the power amplifiers (5a, 5b) in each station amplifier