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

doi:10.1088/1674-1056/22/6/064209

中国物理B ›› 2013, Vol. 22 ›› Issue (6): 64209-064209.doi: 10.1088/1674-1056/22/6/064209

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

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

张星, 宁永强, 秦莉, 佟存柱, 刘云, 王立军

State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China

收稿日期:2012-10-24 修回日期:2013-01-04 出版日期:2013-05-01 发布日期:2013-05-01
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 61204056, 61234004, 90923037, and 11074247) and the Jilin Province Science and Technology Development Plan Item (Grant Nos. 201105025 and 20116011).

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

Zhang Xing (张星), Ning Yong-Qiang (宁永强), Qin Li (秦莉), Tong Cun-Zhu (佟存柱), Liu Yun (刘云), Wang Li-Jun (王立军)

State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China

Received:2012-10-24 Revised:2013-01-04 Online:2013-05-01 Published:2013-05-01
Contact: Ning Yong-Qiang E-mail:ningyq@ciomp.ac.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 61204056, 61234004, 90923037, and 11074247) and the Jilin Province Science and Technology Development Plan Item (Grant Nos. 201105025 and 20116011).

摘要/Abstract

摘要： The output performance of 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 p-electrode diameter, and the 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 a better temperature stability is demonstrated in the VCSEL with 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 optimized p-electrode diameter is 9°, which is much lower than the far-field angle of the VCSEL without this optimization. Also the VCSEL with optimized p-electrode diameter shows a better near-field distribution.

关键词: vertical-cavity surface-emitting lasers, finite-element analysis, far-field divergence, near-field distribution

Abstract: The output performance of 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 p-electrode diameter, and the 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 a better temperature stability is demonstrated in the VCSEL with 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 optimized p-electrode diameter is 9°, which is much lower than the far-field angle of the VCSEL without this optimization. Also the VCSEL with optimized p-electrode diameter shows a better near-field distribution.

Key words: vertical-cavity surface-emitting lasers, finite-element analysis, far-field divergence, near-field distribution

中图分类号: (Semiconductor lasers; laser diodes)

42.55.Px

张星, 宁永强, 秦莉, 佟存柱, 刘云, 王立军. The improved output performance of a broad-area vertical-cavity surface-emitting laser with an optimized electrode diameter[J]. 中国物理B, 2013, 22(6): 64209-064209.

Zhang Xing (张星), Ning Yong-Qiang (宁永强), Qin Li (秦莉), Tong Cun-Zhu (佟存柱), Liu Yun (刘云), Wang Li-Jun (王立军). The improved output performance of a broad-area vertical-cavity surface-emitting laser with an optimized electrode diameter[J]. Chin. Phys. B, 2013, 22(6): 64209-064209.

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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

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