Ultrafast gain dynamics in asymmetrical multiple quantum-well semiconductor optical amplifiers
Ultrafast gain dynamics in asymmetrical multiple quantum-well semiconductor optical amplifiers
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DOI：
10.1109/jqe.2005.846694
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发表时间：
2005-05
影响因子：
2.5
通讯作者：
V. Lysak;H. Kawaguchi;I. Sukhoivanov;T. Katayama;A. Shulika
中科院分区：
文献类型：
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作者：
V. Lysak;H. Kawaguchi;I. Sukhoivanov;T. Katayama;A. Shulika
建立了一个研究非对称多量子阱半导体光放大器中不同波长超短光脉冲传输特性的数值模型。载流子的数量和载流子温度的动态进行了研究，为每个量子阱。这一结果与不同波长泵浦探测的实验结果一致。结果表明，对于所有波长的泵浦信号，对于较高能量的威尔斯阱，增益恢复较慢。
A numerical model for the investigation of the ultrafast gain properties in asymmetrical multiple quantum-well semiconductor optical amplifiers has been developed considering propagation of ultrashort optical pulses with different wavelengths. The dynamics of the number of carriers and carrier temperature are investigated for each quantum well. The results agree with the experimental results of pump probe measurements with different wavelengths. It is shown that gain recovery is slower for higher energy wells for pump signals of all wavelengths.