Semiconductor laser apparatus, information recording/reproduction apparatus and image recording apparatus
文献类型：专利
| 作者 | TAGUCHI, TOYOKI; NAGAHAMA, TETSUYA; TAZAWA, MASAYUKI |
| 发表日期 | 2005-05-03 |
| 专利号 | US6888861 |
| 著作权人 | KABUSHIKI KAISHA TOSHIBA |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Semiconductor laser apparatus, information recording/reproduction apparatus and image recording apparatus |
| 英文摘要 | The semiconductor laser apparatus includes a semiconductor laser, a detection element for detecting the intensity of the output light from the semiconductor laser, an error detection circuit containing a gain controllable operation amplifying circuit and a gain-fixed type control amplifying circuit connected to a next stage to the gain controllable operation amplifying circuit, to which a semiconductor laser drive control signal is input and an output signal of the detection element is input as a negative feedback signal, for outputting an error signal corresponding to a difference between the two input signals, a high-frequency signal generating circuit for generating a high-frequency signal having a predetermined frequency, a high-frequency signal superimposing circuit for superimposing the high-frequency signal onto the output signal from the error detection circuit, and a laser drive circuit for supplying a drive current to the semiconductor laser on the basis of the output signal from the high-frequency signal superimposing circuit. |
| 公开日期 | 2005-05-03 |
| 申请日期 | 2002-01-08 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/33769]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | KABUSHIKI KAISHA TOSHIBA |
| 推荐引用方式 GB/T 7714 | TAGUCHI, TOYOKI,NAGAHAMA, TETSUYA,TAZAWA, MASAYUKI. Semiconductor laser apparatus, information recording/reproduction apparatus and image recording apparatus. US6888861. 2005-05-03. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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