The prototype fiber amplifier in this struc-ture achieves optical gain greater than 20 dB,saturated output power higher than 17 dBm and NF in the range of 5.9-6.2 dB in 30 nm operating bandwidth.

• 采用此方案的光纤放大器在30 nm工作带宽上光增益大于20 dB；饱和输出功率大于17 dBm；噪声指数为5.；9~6