| 摘要 |
<p>A method for controlling a variation in gain in an optical amplifier stage and an optical amplifier are provided, the optical amplifier stage including a pumping device for providing pumping power and a control unit for determining a change in an input power of the optical amplifier, the method comprising the steps of determining a change in an input power of the optical amplifier, adjusting a pumping power of the pumping device to a first power level for a predetermined period of time and adjusting the pumping power of the pumping device to a second power level, the second power level being able to drive the amplifier gain to a predetermined gain value after that the change in the input power occurred.</p> |
