Laser diode optical modulating devices
文献类型：专利
| 作者 | HICKS, JOHN W. |
| 发表日期 | 1988-12-06 |
| 专利号 | US4789843 |
| 著作权人 | HICKS ; JOHN W. |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Laser diode optical modulating devices |
| 英文摘要 | An optical modulator for modulating a light beam includes a laser diode having an active region with optically flat faces at opposite ends thereof. The modulator is constructed so that oscillation of the laser diode is suppressed and a time-varying electrical modulation signal is applied to the active region. An optical isolator includes a first electronically controlled optical switch coupled to the isolator input, a second electronically controlled optical switch coupled to the isolator output and means for optical coupling between the first switch and the second switch and having associated delay T0. Square wave actuation signals are applied to the first and second switches. The square wave signals each have a cycle time Tp=4T0 and the square wave signal applied to the second switch is delayed relative to the square wave signal applied to the first switch by a time T0. A single channel isolator provides a 50% duty cycle output, while a two-channel isolator having control signals delayed by one half cycle provides 100% duty cycle output. The isolator control signals can be gated with a modulation signal to provide both modulating and isolating functions. |
| 公开日期 | 1988-12-06 |
| 申请日期 | 1987-07-28 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/46318]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | 1.JOHN W. 2.HICKS |
| 推荐引用方式 GB/T 7714 | HICKS, JOHN W.. Laser diode optical modulating devices. US4789843. 1988-12-06. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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