Light-emitting element module
文献类型：专利
| 作者 | NAKANO HIROYUKI; SASAKI SHINYA; MAEDA MINORU; AIKI KUNIO |
| 发表日期 | 1988-07-04 |
| 专利号 | JP1988160289A |
| 著作权人 | HITACHI LTD |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Light-emitting element module |
| 英文摘要 | PURPOSE:To improve on high frequency modulation characteristics by a method wherein a light-emitting element metal stem is rendered low in impedance at high frequencies before it is grounded. CONSTITUTION:A modulation signal current applied to a signal input terminal 14 flows through a laser 17 and then through a parallel circuit of a grounding medium 18 of an electrical impedance ZS and an electronic cooling element 19 of an electrical impedance ZP before it is grounded to a case 1b. When the impedance ZS of the medium 18 is larger than the impedance ZP of the cooling means 19, the high frequency component of the modulation signal current goes into the cooling element 19 for the generation of resonance. Even at high frequencies, if the impedance ZS is smaller than the impedance ZP, resonance is suppressed in the parallel circuit. This design improves on a light-emitting element module in terms of its high speed modulation characteristics, enabling a 2-3dB/s modulation to be effected. |
| 公开日期 | 1988-07-04 |
| 申请日期 | 1986-12-24 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/63061]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | HITACHI LTD |
| 推荐引用方式 GB/T 7714 | NAKANO HIROYUKI,SASAKI SHINYA,MAEDA MINORU,et al. Light-emitting element module. JP1988160289A. 1988-07-04. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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