Driving method for semiconductor laser
文献类型：专利
| 作者 | YAMAGISHI FUMIO; KITAGAWA SHUNJI; HASEGAWA SHINYA; IKEDA HIROYUKI; INAGAKI YUSHI |
| 发表日期 | 1986-11-13 |
| 专利号 | JP1986256362A |
| 著作权人 | FUJITSU LTD |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Driving method for semiconductor laser |
| 英文摘要 | PURPOSE:To prevent the mode hop of laser light securely by generating multimode light which has more modes in an off period wherein laser light is not emitted, and thus raising the temperature of the joint part of a semiconductor laser and decreasing the temperature difference from the temperature in an off period. CONSTITUTION:The laser light 9 has single wavelength lambda1 in a period TB in which the semiconductor laser LD inputs a pulse 7 and turns on. A high frequency pulses 10 is superposed in an off period TA to generate multimode light having as many mode as possible, so each light component has small power. The multimode light emitted in the off period differ in wavelength, so light diffracted through a hologram 3 is dispersed and respective mode light components have small power, so light having weak intensity spreads widely over an irradiated surface 12, so no practical problem is generated. |
| 公开日期 | 1986-11-13 |
| 申请日期 | 1985-05-10 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/68785]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | FUJITSU LTD |
| 推荐引用方式 GB/T 7714 | YAMAGISHI FUMIO,KITAGAWA SHUNJI,HASEGAWA SHINYA,et al. Driving method for semiconductor laser. JP1986256362A. 1986-11-13. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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