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中文摘要：
利用光子晶体的自准直效应来调制耦合波导激光器的侧模，并用时域有限差分（FDTD）方法对五通道和九通道耦合波导激光器进行仿真，成功改变了模式的传播方向，使得相邻光场之间的相位差从兀变为零。在两种耦合波导结构中分别获得了远场发散角为12°和7°的单峰，既兼顾了激光器的稳定性，又得到了高质量的光束。
英文摘要：
Self-collimation effect of photonic crystals was used to modulate the lateral mode of coupling waveguide laser. The finite difference time domain （FDTD） simulation results of five- channel and nine-channel coupling waveguide lasers show that the propagation direction is successfully changed. The phase difference between adjacent light fields is changed from n to zero. Single peak is obtained in both coupled waveguide structures and the far-field divergence angles are 12° and 7°, respectively. The quality of the beam as well as consider the stability of the laser.
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