光増幅装置
文献类型：专利
| 作者 | 藤原 雅彦 |
| 发表日期 | 1994-12-14 |
| 专利号 | JP1994103776B2 |
| 著作权人 | 日本電気株式会社 |
| 国家 | 日本 |
| 文献子类 | 授权发明 |
| 其他题名 | 光増幅装置 |
| 英文摘要 | PURPOSE:To monolithically compose a light amplifier of a semiconductor material, and obtain the amplifier having no polarizing dependency characteristic to incident light without necessity of a complicated control system by varying the polarizing state of an input light to a semiconductor laser light amplifier utilizing the gain mechanism of a semiconductor laser at a speed sufficiently higher than that of a signal to be amplified. CONSTITUTION:A signal light 2 transmitted from a signal mode optical fiber(SMF)1a is coupled by coupling means to the waveguide 5 of a polarizing rotator 3. The rotator 3 rotates its polarizing direction in response to a drive signal. The output light of the rotator 3 is coupled to the waveguide 3 of an LD light amplifier 4 to DC-drive the amplifier 4, thereby amplifying the input signal light 2. The amplified light 2 is again coupled by the coupling means to an SMF1b to be transmitted. Here, if the rotator 3 is driven at a speed sufficiently higher (here 1GHz) than the speed of the transmitted signal (here 140Mb/S), the polarizing state of the input light to the amplifier 4 has in average halves of TE and TM components. Accordingly, a stable light amplification is performed without variation in the intensity of the output light due to a disturbance. |
| 公开日期 | 1994-12-14 |
| 申请日期 | 1987-10-16 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/84048]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | 日本電気株式会社 |
| 推荐引用方式 GB/T 7714 | 藤原 雅彦. 光増幅装置. JP1994103776B2. 1994-12-14. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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