论文信息 - 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

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.

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