Methods for monitoring the power out of an amplifier optical and to estimate the power amplified spontaneous measurement generated by a optical amplifier.Provisions for monitoring of power out of an optical amplifier and to determine the relationship between the gain of an optical amplifier and the power amplified generates spontaneous dimensionBy said amplifier, and optical amplifier.

摘要

Methods for monitoring the power out of an optical amplifier, and to estimate the power amplified spontaneous measurement generated by a optical amplifier.Provisions for monitoring of power out of an optical amplifier and to determine the relationship between the gain of an optical amplifier and the power amplified generates spontaneous dimensionBy said amplifier, and optical amplifier. The invention relates to a method and a device for control of the output signal of an optical amplifier (100).An output power target is used to monitor the output power of the amplifier comprises the sum of the output power of the desired signal and an estimate of the ASE generated in the power.The estimate of the ASE in any gain is made using a predetermined relationship between the gain of an amplifier and the amplified spontaneous emission (amplified spontaneous emission - ASE)Generated. A simple implementation of the invention, the relationship is approximated as a linear dependence, when it is determined by measuring the ASE generated in two different gains.The ASE received is determined by measuring the power of the output signal received and deduction of the same output power received total.A most complete measurement of the relationship can also be carried out. The output power of the target determined can be used to stabilize the output of the amplifier.