| 摘要 |
The invention relates to an optical amplifier, an optical transmitter, an optical receiver, a method of controlling them and a method for transmitting a check signal. This device includes an optical amplifier (1), an optical modulator (2) and an optical splitter (4); the amplifier (1) is excited by a pumping light source (3), and a control signal and a check signal are applied to the optical inverter (1) via a circuit (5) for controlling the optical signal and via a circuit (6) for processing the check signal. Application, in particular, to an optical repeater in an optical transmission system. <IMAGE> |
