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采用渐变应变有源区结构 ,制备出偏振不灵敏半导体光学放大器 ,工作电流在 6 0～ 16 0mA范围内 ,其 3dB带宽范围不小于 35nm ,偏振不灵敏度小于 0 35dB ,自发发射出光功率为 0 18～ 3 9mW .
The polarization-insensitive semiconductor optical amplifier is prepared by using a gradual-strained active-region structure. The working current is in the range of 60 to 160 mA, the 3dB bandwidth is not less than 35 nm, the polarization insensitivity is less than 0 35 dB, and the spontaneous emission optical power is 0 18 ~ 3 9mW.