APC circuit for laser light source
文献类型：专利
| 作者 | CHIYOMATSU NOBUMITSU |
| 发表日期 | 1992-09-28 |
| 专利号 | JP1992271025A |
| 著作权人 | OLYMPUS OPTICAL CO LTD |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | APC circuit for laser light source |
| 英文摘要 | PURPOSE:To always attain the highly accurate APC control for the quantity of emitted laser by eliminating the unbalance of weight that is caused per bit of the output value of a pin monitor by the difference of quantities of light emitted from a laser diode. CONSTITUTION:A varying circuit 7 varies the output gain with a/RD signal so as to secure the same weight per bit of the output value of a pin monitor 6 generated with the light quantity of a laser diode 5 that is decreased in a reproduction state and increased in a record/erasion state. At the same time, the circuit 7 amplifiers and outputs the input voltage received from a resistor R1 in accordance with the varied output gain. The circuit 7 consists of an operational amplifier 7a, received the negative feedback, a resistor R2, the feedback resistors R3 and R4 connected in parallel to each other, and an analog switch 7b which is connected in series to the R3 and turned on and off with the/RD signal. |
| 公开日期 | 1992-09-28 |
| 申请日期 | 1991-02-26 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/59712]  |
| 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 | CHIYOMATSU NOBUMITSU. APC circuit for laser light source. JP1992271025A. 1992-09-28. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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