半導体レ—ザ光源制御装置
文献类型：专利
| 作者 | 笠 史郎; 望月 清文 |
| 发表日期 | 1996-05-17 |
| 专利号 | JP2520153B2 |
| 著作权人 | 国際電信電話株式会社 |
| 国家 | 日本 |
| 文献子类 | 授权发明 |
| 其他题名 | 半導体レ—ザ光源制御装置 |
| 英文摘要 | PURPOSE:To stabilize the oscillation frequency of a semiconductor laser and to improve the width of a spectral line by using as an external resonator a device transmits a part of light and by letting the transmitted light through an optical frequency discriminator. CONSTITUTION:In a semiconductor laser light source controlling apparatus B, the light La output backward from a semiconductor laser 1 is inputted into an external resonator 2. As the external resonator 2, a translucent mirror which transmits only a small part of the backwardly output light La an optical guide, one end of which is coated with a reflecting film of a high reflectance, is used. At the same time when the backwardly output light La is inputted into the external resonator 2, the external resonator 2 supplies a partially transmitted light Lb to an optical frequency discriminator. The partially transmitted light Lb is discriminated by the optical frequency discriminator 4 to be converted into an intense converted light Lc then to be converted into an electric signal Ea by a light receiving device 5. Then, an automatic frequency control circuit 6 changes the amount of current injected into the semiconductor laser At the same time, it also changes a phase of the light Lc returning from the external resonator 2 to the semiconductor laser 1 for stabilization of the frequency. By this apparatus, the oscillation frequency of the semiconductor laser is stabilized and the width of a spectral line is improved. |
| 公开日期 | 1996-07-31 |
| 申请日期 | 1988-07-01 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/47661]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | 国際電信電話株式会社 |
| 推荐引用方式 GB/T 7714 | 笠 史郎,望月 清文. 半導体レ—ザ光源制御装置. JP2520153B2. 1996-05-17. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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