Semicircular ring self-excited oscillation type double-heterostructure semiconductor laser
文献类型：专利
| 作者 | KOMAZAKI IWAO |
| 发表日期 | 1992-07-28 |
| 专利号 | JP1992206984A |
| 著作权人 | OLYMPUS OPTICAL CO LTD |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Semicircular ring self-excited oscillation type double-heterostructure semiconductor laser |
| 英文摘要 | PURPOSE:To easily self-excited oscillate a laser with high output and low noise and to strengthen against return noise by forming a high reflection film in a monitor side optical output end state of a cleaved surface having an emitting light end including a saturable absorption region of a partial region formed thickly of a mesalike ring clad layer and a monitor side optical output end in the same plane. CONSTITUTION:Since both sides of a mesa ring are covered with current block layers 28, carrier to be injected from a P-type electrode 29 is injected only at the center of a mesa, an active layer 24 has a quantum well structure, a differentiated quantum gain becomes abrupt, and an element having excellent temperature characteristic can be realized in a high efficiency. A p-type clad layer 26 in which a position where the band 32 of a ring coupling is removed, protrudes, is cleaved at the center, an optical output side end g1 and a monitor side optical output end g2 are formed on the same cleaved surface, and its interval is separated by 100 times or more of its wavelength. The cleaved end (g) is formed with a high reflectivity coating film 30, the quantity of a return light to be incident through a monitor side can be ignored, a saturable absorption region to easily become an output surface is provided at the monitor side to be easily self-excited oscillated. |
| 公开日期 | 1992-07-28 |
| 申请日期 | 1990-11-30 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/65931]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | OLYMPUS OPTICAL CO LTD |
| 推荐引用方式 GB/T 7714 | KOMAZAKI IWAO. Semicircular ring self-excited oscillation type double-heterostructure semiconductor laser. JP1992206984A. 1992-07-28. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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