摘要
研究半导体光放大器(SOA)中自非线性偏振旋转的特性。利用时域行波模型求解载流子和光子浓度的速率方程,利用k*p方法求解方程中包含应变效应的材料增益系数。在计算结果中,模拟出半导体光放大器的自非线性偏振旋转效应现象,并且证明可以利用自非线性偏振旋转效应实现光开关。最后,讨论输入信号的光强对光开关消光比的影响。
In the paper, self-induced nonlinear polarization rotation （SPR） in a Quantum Well Semiconductor Optical Amplifier （QW SOA） is theoretically investigated. The material gain calculation, including the strain effect in the active layer, is based on the k＊p method. In our result, it is shown that the SPR phenomenon in a SOA and demonstrated that optical switching can be realized by the SPR effect. Then, the influence of input power of signal on the extinction ratio of optical switch is also discussed.
出处
《光通信技术》
北大核心
2015年第12期22-24,共3页
Optical Communication Technology
基金
南京工程学院引进人才科研启动基金(批准号:YKJ201320)资助
关键词
半导体光放大器
非线性偏振旋转
光开关
semiconductor optical amplifiers, nonlinear polarization rotation, optical switching
