Semiconductor laser driver
文献类型：专利
| 作者 | NUMATA TOMIYUKI; KOJIMA KUNIO; FUJIWARA TSUNEO; TSUJI KENTARO; FUJI HIROSHI; TERAJIMA SHIGEO |
| 发表日期 | 1988-10-31 |
| 专利号 | JP1988263784A |
| 著作权人 | SHARP CORP |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Semiconductor laser driver |
| 英文摘要 | PURPOSE:To obtain a stable high output light by a signal by detecting the variation in the differentiating efficiency of a semiconductor laser as an alteration of a ratio of a disturbance level to a correction level. CONSTITUTION:When a disturbance signal (b) is applied from a disturbance signal source 13 to an optical detection signal (a), an automatic output controller (APC) judges the variation in the light irradiated from a semiconductor laser 4 and operates to correct the control signal (c) of a low output current source The signal (b) must be set to a level which has a frequency in which the APC can respond and which does not become a problem in its system. Then, a correction signal (d) of the component corresponding to the signal (b) of the signal (c) is detected by a correction signal detector 14, a predetermined calculation is carried out by a calculator 16, and a high output current source 2 is controlled when information is recorded with this calculated result. Thus, if a differentiating efficiency becomes, for example, 1/2 times, the high output current becomes twice, thereby obtaining a stable high output light for the variation in the differentiating efficiency. |
| 公开日期 | 1988-10-31 |
| 申请日期 | 1987-04-22 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/68931]  |
| 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 | NUMATA TOMIYUKI,KOJIMA KUNIO,FUJIWARA TSUNEO,et al. Semiconductor laser driver. JP1988263784A. 1988-10-31. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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