Self oscillation type semiconductor laser device | |
NAGAI SEIICHI; TAKAMIYA SABURO | |
1988-05-27 | |
著作权人 | MITSUBISHI ELECTRIC CORP |
专利号 | JP1988124489A |
国家 | 日本 |
文献子类 | 发明申请 |
其他题名 | Self oscillation type semiconductor laser device |
英文摘要 | PURPOSE:To obtain a pulsation LD, in which oscillation and quenching are conducted alternately, by forming an active layer held by upper and lower clad layers onto a semiconductor substrate and interposing a current block region limiting a current path between the substrate and these clad layers and active layer. CONSTITUTION:A P-type AlyGa1-yAs active layer 5 held by a P-type Alx Ga1-xAs lower clad layer 4 and an N-type AlxGa1-xAs upper clad layer 6 is shaped onto a P-type GaAs substrate An N-type GaAs current block layer 12 with a striped groove 3 corresponding to an oscillation region 10 positioned at the central section of the active layer 5 is interposed between the substrate 1 and the lower clad layer 4. A plurality of openings partitioned by meshy current block regions 12a are formed previously into the groove 3, laser oscillation is started when injected carrier density reaches a threshold or more, and oscillation and quenching are repeated with the variation of carrier density. Accordingly, a current path is limited, thus acquiring the desired state of oscillation. |
公开日期 | 1988-05-27 |
申请日期 | 1986-11-13 |
状态 | 失效 |
内容类型 | 专利 |
源URL | [http://ir.opt.ac.cn/handle/181661/67557] ![]() |
专题 | 半导体激光器专利数据库 |
作者单位 | MITSUBISHI ELECTRIC CORP |
推荐引用方式 GB/T 7714 | NAGAI SEIICHI,TAKAMIYA SABURO. Self oscillation type semiconductor laser device. JP1988124489A. 1988-05-27. |
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