High-power single-mode vertical-cavity surface-emitting lasers with triangular holey structure
High-power single-mode vertical-cavity surface-emitting lasers with triangular holey structure
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DOI：
10.1063/1.1830071
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发表时间：
2004-12
影响因子：
4
通讯作者：
A. Furukawa;S. Sasaki;M. Hoshi;A. Matsuzono;K. Moritoh;T. Baba
中科院分区：
文献类型：
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作者：
A. Furukawa;S. Sasaki;M. Hoshi;A. Matsuzono;K. Moritoh;T. Baba
通过二维三角形多孔结构，在氧化物限制的850nm垂直腔面发射激光器中演示了高功率稳定的单模操作。对于两种类型的孔排列，用不同的近场图案观察激光操作，即单点图案和花图案。前者的输出功率为 2mW，具有 45-50dB 的高边模抑制比 (SMSR)，这可以通过选择性损耗机制来解释。后者表现出 7mW 的高功率和 40dB 的 SMSR。观察到的激光光谱和远场图表明它是一种变形的基模，其亮点在器件上延伸是同相振荡的。这种器件结构对于增强任何材料系统的器件中的单模功率都将是有效的。
By the two-dimensional triangular holey structure, a high-power stable single-mode operation was demonstrated in oxide confined 850nm vertical-cavity surface-emitting lasers. For two types of hole alignments, the lasing operation was observed with different near field patterns, i.e., a single spot pattern and a floral pattern. The former showed an output power of 2mW with a high side-mode suppression ratio (SMSR) of 45–50dB, which is explained by the selective loss mechanism. The latter showed a high power of 7mW with a SMSR of 40dB. The observed lasing spectrum and far field pattern indicate that it is a deformed fundamental mode whose bright spots extending over the device are in-phase oscillating. This device structure will be effective for the enhancement of single-mode power in devices with any material system.