Drive circuit for semiconductor laser
文献类型：专利
| 作者 | MURATA KAZUHISA |
| 发表日期 | 1987-06-24 |
| 专利号 | JP1987140482A |
| 著作权人 | SHARP CORP |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Drive circuit for semiconductor laser |
| 英文摘要 | PURPOSE:To supply currents having a constant peak value for a prolonged time by mounting a first current source generating first DC bias currents and a second current source generating second DC bias currents and fitting digital- analog converters to both current sources. CONSTITUTION:A first current source A generating first DC bias currents Idcl, a maximum level thereof is brought to the threshold currents Ith or less of a semiconductor laser LD, and a second current source B generating second DC bias currents Idc2, a superimposed level thereof with first DC bias currents Idcl exceeds the threshold currents Ith of the semiconductor laser LD, are set up. A switching means C turning the supply of second DC bias currents Idc2 to the semiconductor laser LD ON-OFF in response to input signals is provided. An output section for a counter CT1 is connected to an input section for a digital-analog converter DA1 in the first current source A. The second current source B has the same constitution as the first current source A. |
| 公开日期 | 1987-06-24 |
| 申请日期 | 1985-12-13 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/59440]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | SHARP CORP |
| 推荐引用方式 GB/T 7714 | MURATA KAZUHISA. Drive circuit for semiconductor laser. JP1987140482A. 1987-06-24. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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