基于半导体光放大器的慢光研究

根据半导体光放大器中四波混频效应产生的等效折射率光栅理论,利用调制折射率和载流子寿命的物理现象模型推导并分析了信号光延时量与半导体光放大器注入电流、泵浦光入射功率、泵浦光与信号光的频率失谐量之间的定量关系,并采用半导体光放大器分段模型的方法进行了数值模拟.相比于目前从降速因子的角度定性分析频率失谐量对延时效果影响的方法...

Slow Light Based on Semiconductor Optical Amplifier

In the semiconductor optical amplifer, on the basis of the theory of four wave mixing effect and refractive modulation-index generated by equivalent grating, dynamic changes of the signal light time delay with the outside controllable parameters, such as the injection current into semiconductor optical amplifier(SOA), the pump light power, the detuning frequency between pump light and signal light, are numerically simulated by the method of subsections model of SOA. Compared with the former simulation of slow light from the slow down factor view, this method has the advantage of associating the signal time delay with outside controllable parameters and providing the intuitional guidce for the experiment. Meanwhile, the method by subsections model of SOA has higher accuracy. Compared with the existing experimental results, it indicates that the numerically simulated results are agree well with the measurements.