Chin. Phys. B ›› 2013, Vol. 22 ›› Issue (12): 124203-124203.doi: 10.1088/1674-1056/22/12/124203
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
吴坚, 崔怀洋, 黄梦, 马明磊
Wu Jian (吴坚), Cui Huai-Yang (崔怀洋), Huang Meng (黄梦), Ma Ming-Lei (马明磊)
摘要: Optical gain and thermal carrier loss distributions regarding current diffusion and various electric contact areas are investigated to improve the near-field modes from the ring-shape to a Gaussian-like configuration for extra-broad-area and oxide-confined vertical-cavity surface-emitting lasers. In this work an equivalent circuit network model is used. The resistance of the continuously-graded distributed Bragg reflectors (DBRs), the current diffusion and the temperature effect due to different electric-contact areas are calculated and analyzed at first, as these parameters affect one another and are the key factors in determining the gain and thermal carrier loss. Finally, the gain and thermal carrier loss distributions are calculated and discussed.
中图分类号: (Semiconductor lasers; laser diodes)