光子学报, 2011, 40 (1): 41, 网络出版: 2011-03-08
基于半导体光放大器的慢光研究
Slow Light Based on Semiconductor Optical Amplifier
慢光 四波混频 等效光栅 调制折射率 半导体光放大器 Slow light Four wave mixing Equivalent grating Refractive modulation-index Semiconductor optical amplifier
摘要
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而言,本文可以将延时量同实际实验中可控参量直接联系起来,对于指导实验更具有可操作性,并且分段模型的方法具有更高的精确性,通过与现有实验结果对比证明该计算结果与实验结论一致.
Abstract
In the semiconductor optical amplifer,based on 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,were 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 agree well with the measurements.
胡苗苗, 王肇颖, 杨天新, 贾东方. 基于半导体光放大器的慢光研究[J]. 光子学报, 2011, 40(1): 41. HU Miao-miao, WANG Zhao-ying, YANG Tian-xin, JIA Dong-fang. Slow Light Based on Semiconductor Optical Amplifier[J]. ACTA PHOTONICA SINICA, 2011, 40(1): 41.