半導体レ-ザ駆動回路
文献类型：专利
| 作者 | 杉村 圭一; 竹山 佳伸; 島田 和之 |
| 发表日期 | 1996-03-04 |
| 专利号 | JP1996021746B2 |
| 著作权人 | 株式会社リコー |
| 国家 | 日本 |
| 文献子类 | 授权发明 |
| 其他题名 | 半導体レ-ザ駆動回路 |
| 英文摘要 | PURPOSE:To suppress the fluctuation of an optical output at a rise-up time due to the thermal coupling of a semiconductor laser, by providing a differential circuit, which differentiates a modulated signal, and providing a current drawing circuit, which draws a correcting current proportional to a differential signal out of a constant current from a constant current source. CONSTITUTION:An LD driving circuit 2, which turns ON and OFF a semiconductor laser LD 1 in correspondence with a modulated signal (a) such as a video signal, is provided through a phase correcting circuit 3. The LD driving circuit 2 includes a transistor as a switching element. The semiconductor laser 1 is connected to a power source +V through a constant current source 4. A series circuit of a differential circuit 5, to which the modulating signal is inputted through the phase correcting circuit 3, and a current drawing circuit 6 is provided. Said series circuit is connected to the semiconductor laser 1 in parallel. The current drawing circuit 6 receives a current from the constant current source 4, which is supplied to the semiconductor laser 1 at the rise-up time of the semiconductor laser 1, as a correcting current having a specified time constant, and corrects the fluctuation of the output of the semiconductor laser |
| 公开日期 | 1996-03-04 |
| 申请日期 | 1986-12-08 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/70741]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | 株式会社リコー |
| 推荐引用方式 GB/T 7714 | 杉村 圭一,竹山 佳伸,島田 和之. 半導体レ-ザ駆動回路. JP1996021746B2. 1996-03-04. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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