The improved output performance of a broad-area vertical-cavity surface-emitting laser with an optimized electrode diameter

	The improved output performance of a broad-area vertical-cavity surface-emitting laser with an optimized electrode diameter
	Zhang X.; Ning Y. Q.; Qin L.; Tong C. Z.; Liu Y.; Wang L. J.
	2013
发表期刊	Chinese Physics B
ISSN	ISBN/1674-1056
卷号	22 期号:6
摘要	The output performance of a 980-nm broad-area vertical-cavity surface-emitting laser (VCSEL) is improved by optimizing the p-electrode diameter in this study. Based on a three-dimensional finite-element method, the current density distribution within the active region of the VCSEL is optimized through the appropriate adjustment of the p-electrode diameter, and uniform current-density distribution is achieved. Then, the effects of this optimization are studied experimentally. The L-I-V characteristics under different temperatures of the VCSELs with different p-electrode diameters are investigated, and better temperature stability is demonstrated in the VCSEL with an optimized p-electrode diameter. The far-field measurements show that with an injected current of 2 A, the far-field divergence angle of the VCSEL with an optimized p-electrode diameter is 9 degrees, which is much lower than the far-field angle of the VCSEL without this optimization. Also the VCSEL with an optimized p-electrode diameter shows a better near-field distribution.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/40706
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Zhang X.,Ning Y. Q.,Qin L.,et al. The improved output performance of a broad-area vertical-cavity surface-emitting laser with an optimized electrode diameter[J]. Chinese Physics B,2013,22(6).
APA	Zhang X.,Ning Y. Q.,Qin L.,Tong C. Z.,Liu Y.,&Wang L. J..(2013).The improved output performance of a broad-area vertical-cavity surface-emitting laser with an optimized electrode diameter.Chinese Physics B,22(6).
MLA	Zhang X.,et al."The improved output performance of a broad-area vertical-cavity surface-emitting laser with an optimized electrode diameter".Chinese Physics B 22.6(2013).

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