Compact and polarization controlled 1.55μm vertical-cavity surface-emitting laser using single-layer photonic crystal mirror
Compact and polarization controlled 1.55μm vertical-cavity surface-emitting laser using single-layer photonic crystal mirror
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DOI：
10.1063/1.2771085
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发表时间：
2007-08
影响因子：
4
通讯作者：
S. Boutami;B. Benbakir;J. Leclercq;P. Viktorovitch
中科院分区：
文献类型：
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作者：
S. Boutami;B. Benbakir;J. Leclercq;P. Viktorovitch
垂直腔面发射激光器(VCSEL)由一个增益介质组成，其中的反馈通常由两个分布的布拉格反射器(DBR)完成，对于DBR，必须获得足够的反射率才能获得激光发射。因此，DBR通常由非常厚的层堆栈组成。在这封信中，作者报道了一种VCSEL的实现，其顶镜由单层一维光子晶体镜(PCM)组成。这种PCM显著改善了器件的紧凑性和总偏振控制，同时提供了定向和单侧向模式发射。
Vertical-cavity surface-emitting lasers (VCSELs) consist of a gain medium in which feedback is generally accomplished by two distributed Bragg reflectors (DBRs), for which sufficient reflectivity has to be achieved in order to obtain laser emission. As a consequence, DBRs generally consist of very thick layer stacks. In this letter, the authors report the realization of a VCSEL, of which the top mirror consists of a single-layer one-dimensional photonic crystal mirror (PCM). This PCM enables significantly improved device compactness and total polarization control, while providing a directive and single lateral mode emission.