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半导体光放大器以其良好的非线性在全光网络中具有广泛应用,但较长的载流子恢复时间一直是制约其用于超快全光信号处理的速率瓶颈,基于包含自发辐射噪声的半导体光放大器模型,探讨了提高半导体光放大器增益恢复时间的有效途径,通过对制约透明波长移动,增益饱和与有效载流子寿命的相关因素进行数值分析,得出以下结论:与单辅助光相比,采用双辅助光可以在不牺牲信号增益的前提下进一步缩短载流子寿命,因而是提高半导体光放大器增益恢复时间的有效途径,这一点对工程设计和应用具有一定的指导意义。
Semiconductor optical amplifiers are widely used in all-optical networks due to their good nonlinearity. However, long carrier recovery time has been the bottleneck restricting their application to ultra-fast all-optical signal processing. Based on the semiconductor containing spontaneous emission noise Optical amplifier model to explore the effective way to improve the gain recovery time of the semiconductor optical amplifier. By numerical analysis of the factors that restrict the transparent wavelength shift, gain saturation and effective carrier lifetime, the following conclusions are drawn: Compared with the single auxiliary light The dual auxiliary light can further shorten the carrier lifetime without sacrificing the signal gain, which is an effective way to improve the gain recovery time of the semiconductor optical amplifier. This point is of guiding significance for engineering design and application.