Semiconductor laser driver circuit
文献类型：专利
| 作者 | KAKU, TOSHIMITSU; SHIGEMATSU, KAZUO |
| 发表日期 | 1989-04-04 |
| 专利号 | US4819242 |
| 著作权人 | HITACHI, LTD., A CORP OF JAPAN |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Semiconductor laser driver circuit |
| 英文摘要 | A low-laser-noise semiconductor driver device is provided for use in an optical information processing device which is recordable or erasable and which oscillates a semiconductor laser with a high output when it is recorded or erased. A semiconductor is generally oscillated with a rated maximum output during a recording and erasing operation. Therefore, when high frequency superposition is made in such a high output oscillation state, an oscillation output exceeds the rated output, which badly influences the life of the laser. To obviate this drawback, the high frequency superposition is stopped at the mode of recording or erasing in which the high output oscillation is made by a switching circuit which is controlled by a mode control signal. This reduces the laser noise at the mode of reproducing and also lengthens the life of the semiconductor laser. The semiconductor laser driver device can be also used as a light source of the optical information processing device which can record and/or erase information. |
| 公开日期 | 1989-04-04 |
| 申请日期 | 1986-11-20 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/33277]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | HITACHI, LTD., A CORP OF JAPAN |
| 推荐引用方式 GB/T 7714 | KAKU, TOSHIMITSU,SHIGEMATSU, KAZUO. Semiconductor laser driver circuit. US4819242. 1989-04-04. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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