Dynamics of Optically-Injected Semiconductor Lasers Using the Travelling-Wave Approach
Dynamics of Optically-Injected Semiconductor Lasers Using the Travelling-Wave Approach
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DOI：
10.1109/jqe.2009.2030511
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发表时间：
2010-01
影响因子：
2.5
通讯作者：
C. Stolz;D. Labukhin;N. Zakhleniuk;Michael J. Adams
中科院分区：
文献类型：
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作者：
C. Stolz;D. Labukhin;N. Zakhleniuk;Michael J. Adams
光注入半导体激光器的动力学特性在混沌信号传输等领域具有重要的应用价值。首次提出了一种通过研究光学注入系统的运动轨迹来获得用行波模型模拟的光学注入系统的动力学全貌的方法。该方法利用轨迹交点在庞加莱平面上的分布来区分系统的不同动态状态。然后将其应用于三种不同布拉格耦合系数的四分之一波移分布反馈激光器的反射光和透射光的稳定性图，结果表明：第一，反射光和透射光的动力学不同；第二，布拉格耦合系数较低的情况下的锁定带宽显著增加。这两个发现都与通过不同分析获得的已发表结果一致。然后应用所获得的稳定性图在每个锁定区域内找到三个点，其中显示了沿腔体的纵向功率和载流子分布。将这些分布与孤子激光进行了比较，给出了布拉格耦合系数与功率分布和载流子分布形状之间的关系。
The dynamics of optically-injected semiconductor lasers are of great practical interest for various applications such as chaotic signal transmission. For the first time, a method is presented to obtain a complete picture of the dynamics for optically-injected systems simulated with the travelling-wave model by investigating their trajectories. The method uses the distribution of intersection points of the trajectory on a Poincare plane to distinguish between different dynamical states of the system. It is then applied to obtain stability maps for the reflected and transmitted light of three quarter-wave-shifted distributed-feedback lasers with different Bragg coupling coefficients and it is shown that, firstly, the dynamics are different for the reflected and transmitted light and, secondly, the locking bandwidth for the case with lower Bragg coupling coefficient is significantly increased. Both findings are in agreement with published results obtained by a different analysis. The obtained stability maps are then applied to find three points inside each locking region for which the longitudinal power and carrier distributions along the cavity are displayed. These distributions are compared with the solitary laser and the relation between the Bragg coupling coefficient and its influence on the shape of the power and carrier distributions is shown.