Which of the following descriptions about EDFA is wrong?

Question

Nisanka Mandara · Accepted Answer

The optical monitoring channel of 1510nm can be effectively amplified by EDFA

Nisanka Mandara · Answer

When the output power of the EDFA reaches saturation, increase the input optical power, and the gain of the EDFA will decrease

Nisanka Mandara · Answer

Noise figure, saturated output power, gain flatness, gain, etc. are all important parameters to characterize EDFA

Nisanka Mandara · Answer

The amplification of optical signals by EDFA is pure optical amplification without photoelectric conversion.

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