半導体レ-ザ駆動装置
文献类型：专利
| 作者 | 佐藤 康志; 後藤 正弘; 荒矢 順治; 大塚 康正; 奥田 幸一; 岡野 啓司 |
| 发表日期 | 1995-04-26 |
| 专利号 | JP1995038478B2 |
| 著作权人 | キヤノン株式会社 |
| 国家 | 日本 |
| 文献子类 | 授权发明 |
| 其他题名 | 半導体レ-ザ駆動装置 |
| 英文摘要 | PURPOSE:To emit a laser light having excellent extinction ratio by controlling a bias current applied when the light of a semiconductor laser is extinguished on the basis of a threshold bias current value and applying the bias current of the degree not laser oscillating near the threshold value to the laser. CONSTITUTION:When a controller 5 calculates nonlight emitting bias current value IBIAS, it is applied to a semiconductor laser The controller 5 feeds data for increasing a light emitting current to a latch 8 until a predetermined emitted light quantity is obtained. The controller 5 holds the value at the latch 8 and instructs a laser OFF signal to a switching circuit 3. Thus, only the value IBIAS is applied to the laser 1 to become capable of printing. It becomes possible to print by the above operation, the controller 5 then generates a laser ON signal LON on the basis of a print signal, and the laser 1 emits a light in response to the input print signal on the basis of the current in which a light emitting current is added to the bias current. |
| 公开日期 | 1995-04-26 |
| 申请日期 | 1986-04-08 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/68854]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | キヤノン株式会社 |
| 推荐引用方式 GB/T 7714 | 佐藤 康志,後藤 正弘,荒矢 順治,等. 半導体レ-ザ駆動装置. JP1995038478B2. 1995-04-26. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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