二维光子晶体对耦合波导激光器侧模的调制研究  

Modulation of the Lateral Mode of Coupling Waveguide Laser with 2D Photonic Crystal

作　　者：晏新宇[1] 陈微[1] 张建心[1] 王宇飞[1] 江斌[1] 付非亚[1] 齐爱谊[1] 郑婉华[1] 

机构地区：[1]中国科学院半导体研究所纳米光电子实验室,北京100083

出　　处：《半导体光电》2011年第6期765-768,780,共5页Semiconductor Optoelectronics

基　　金：国家自然科学基金项目(61025025;60838003)

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π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。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.

关 键 词：光子晶体 自准直 耦合波导激光器 同相模式 失相模式 

分 类 号：TN248.4[电子电信—物理电子学]