Xi'an Institute of Optics and Precision Mechanics,CAS
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其他题名 | - |
KOBAYASHI KEISUKE; NAKAJIMA HISAO; WATANABE NOZOMI; YAMASHITA MASATO; FUKUZAWA TADASHI | |
1988-09-21 | |
专利权人 | KOGYO GIJUTSUIN |
公开日期 | 1988-09-21 |
授权国家 | 日本 |
专利类型 | 授权发明 |
摘要 | PURPOSE:To reduce the lateral spread of an injected current in an active layer, by providing a pair of multicrystal layers, with a stripe part left at positions adjacent to the active layer in one clad layer of the clad layers holding the active layer inbetween. CONSTITUTION:Clad layers 4 and 6 are constituted by compound semiconductors having a refractive index which is larger than the refractive index of an active layer 5 and provided on the upper and lower surfaces of the active layer 5. An SiO2 film 3 is formed on the layer 4, with a stripe part 3' remained. Thereafter, a compound semiconductor, which is the same as the layer 4, is grown on the layer 4. Then, a single crystal layer 9 is formed in the part 3' and the upper part thereof. On the film 3, a pair of multicrystal layers 2 are formed on both sides of the layer 9. The layers 2 and the layer 9 act as a clad layer. Therefore the layer 4 can be made thin. The layers 2 can be formed at the positions, which are closer to the layer 5 by the amount of the thickness reduction. When an exciting current is injected, the current is confined in a stripe shape by the layers 2 and injected into the layer 5 under this state. The spread of the injected current in the layer 5 becomes small, and gain increasing wave guidance is effectively generated. |
其他摘要 | 目的:通过提供一对多晶层来减少注入电流在有源层中的横向扩展,条带部分留在包层的一个包层中与有源层相邻的位置,在包层之间保持有源层。组成:包层4和6由化合物半导体构成,该化合物半导体的折射率大于有源层5的折射率,并设置在有源层5的上下表面上。在其上形成SiO2薄膜3。第4层,留有条纹部分3'。此后,在层4上生长与层4相同的化合物半导体。然后,在部分3'及其上部形成单晶层9。在膜3上,在层9的两侧形成一对多晶层2.层2和层9用作包层。因此,可以使层4变薄。层2可以形成在靠近层5的位置处,厚度减少量。当注入激励电流时,电流被层2限制成条形,并在该状态下注入层5中。注入电流在层5中的扩展变小,并且有效地产生增益增加的波导。 |
申请日期 | 1982-09-21 |
专利号 | JP1988047355B2 |
专利状态 | 失效 |
申请号 | JP1982163193 |
公开(公告)号 | JP1988047355B2 |
IPC 分类号 | H01L21/203 | H01S5/00 | H01S5/22 | H01S5/223 |
专利代理人 | - |
代理机构 | - |
文献类型 | 专利 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/83851 |
专题 | 半导体激光器专利数据库 |
作者单位 | KOGYO GIJUTSUIN |
推荐引用方式 GB/T 7714 | KOBAYASHI KEISUKE,NAKAJIMA HISAO,WATANABE NOZOMI,et al. -. JP1988047355B2[P]. 1988-09-21. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
JP1988047355B2.PDF(452KB) | 专利 | 开放获取 | CC BY-NC-SA | 请求全文 |
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