Laser driver with temperature compensation
文献类型：专利
| 作者 | ROYER, JAMES J.; SHASTRI, KALPENDU R. |
| 发表日期 | 1991-08-27 |
| 专利号 | US5043992 |
| 著作权人 | BELL TELEPHONE LABORATORIES, INCORPORATED, A CORP. OF NY |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Laser driver with temperature compensation |
| 英文摘要 | A laser driver includes a reference circuit, which may be a bandgap reference, mounted in thermal contact with the laser. The reference produces a current component Iptat that is proportional to the absolute temperature. The modulation current is proportional to Iptat, which slowly with temperature, up to a certain junction temperature (e.g., 65 to 70 degrees C.). Above that temperature, the modulation current increases more rapidly by adding an additional current component Icomp. This provides for the required increase in modulation current to compensate for temperature variations in the laser output. This technique allows the laser to be operated without cooling (as by a thermoelectric cooler) in many applications. The laser driver may optionally include circuitry to provide a bias current, which may be controlled by a backface monitor or threshold detector. |
| 公开日期 | 1991-08-27 |
| 申请日期 | 1989-10-06 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/34895]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | BELL TELEPHONE LABORATORIES, INCORPORATED, A CORP. OF NY |
| 推荐引用方式 GB/T 7714 | ROYER, JAMES J.,SHASTRI, KALPENDU R.. Laser driver with temperature compensation. US5043992. 1991-08-27. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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