Control device of semiconductor laser emission and its control
文献类型：专利
| 作者 | ASAI TAKAHIRO; SHIBATA ISAMU; NAGASAWA KIYOTO |
| 发表日期 | 1989-08-30 |
| 专利号 | JP1989216848A |
| 著作权人 | RICOH CO LTD |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Control device of semiconductor laser emission and its control |
| 英文摘要 | PURPOSE:To enable a multivalue light signal output to be obtained with a simple constitution by converting an output current for light emission from a variable current source so that said output current meets the requirements of a multi-level digital image input signal. CONSTITUTION:A variable current source 2 is serially connected to a semiconductor laser The light emitting output of the semiconductor laser 1 corresponds to a light emitting current which is output from the variable current source 2. Furthermore, a current source control signal 4 from a signal conversion circuit 3 is applied to the variable current source 2, and the current source control signal 4 controls the light emitting current to be output from the various current source 2. In addition, a multi- level digital image, input signal 5 is received by the signal conversion circuit 3, and the multi-level digital image input signal 5 on the input side of the signal conversion circuit 3 and the current source control signal 4 on the output side meet the relationship between the light emitting current to be output from the variable current source 2 and the light emitting output of the semiconductor laser Therefore, the multi-level digital image input signal 5 and an output current for light emission from the variable current source 2 correspond with each other in a linear mode. |
| 公开日期 | 1989-08-30 |
| 申请日期 | 1988-02-25 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/59558]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | RICOH CO LTD |
| 推荐引用方式 GB/T 7714 | ASAI TAKAHIRO,SHIBATA ISAMU,NAGASAWA KIYOTO. Control device of semiconductor laser emission and its control. JP1989216848A. 1989-08-30. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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