Theoretical investigation on quantum well lasers with extremely low vertical beam divergence and low threshold current
文献类型：期刊论文
| 作者 | Yang GW ; Xu JY ; Xu ZT ; Zhang JM ; Chen LH ; Wang QM |
| 刊名 | journal of applied physics
 |
| 出版日期 | 1998 |
| 卷号 | 83期号:1页码:8-14 |
| 关键词 | PASSIVE WAVE-GUIDES 0.98 MU-M FIBER AMPLIFIER SINGLE THICKNESS PERFORMANCE DESIGN |
| ISSN号 | 0021-8979 |
| 通讯作者 | yang gw,chinese acad sci,inst semicond,pob 912,beijing 100083,peoples r china. |
| 中文摘要 | a specially designed quantum well laser for achieving extremely low vertical beam divergence was reported and theoretically investigated. the laser structure was characterized by two low index layers inserted between the waveguide layers and the cladding layers. the additional layers were intended to achieve wide optical spread in the cladding layers and strong confinement in the active region. this enabled significant reduction of beam divergence with no sacrifice in threshold current density. the numerical results showed that lasers with extremely low vertical beam divergence from 20 degrees down to 11 degrees and threshold current density of less than 131 a/cm(2) can be easily achieved by optimization of the structure parameters. influences of individual key structure parameters on beam divergence and threshold current density are analyzed. attention is also paid to the minimum cladding layer thicknesses needed to maintain low threshold current densities and low internal loss. the near and far field patterns are given and discussed. (c) 1998 american institute of physics. |
| 学科主题 | 半导体物理 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2010-08-12 |
| 源URL | [http://ir.semi.ac.cn/handle/172111/13296]  |
| 专题 | 半导体研究所_中国科学院半导体研究所（2009年前） |
| 推荐引用方式 GB/T 7714 | Yang GW,Xu JY,Xu ZT,et al. Theoretical investigation on quantum well lasers with extremely low vertical beam divergence and low threshold current[J]. journal of applied physics,1998,83(1):8-14. |
| APA | Yang GW,Xu JY,Xu ZT,Zhang JM,Chen LH,&Wang QM.(1998).Theoretical investigation on quantum well lasers with extremely low vertical beam divergence and low threshold current.journal of applied physics,83(1),8-14. |
| MLA | Yang GW,et al."Theoretical investigation on quantum well lasers with extremely low vertical beam divergence and low threshold current".journal of applied physics 83.1(1998):8-14. |
入库方式： OAI收割
来源：半导体研究所
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