Frequency stabilization of a plurality of light sources
文献类型：专利
| 作者 | TOBA HIROSHI; NOSU KIYOSHI; ODA KAZUHIRO |
| 发表日期 | 1989-01-19 |
| 专利号 | JP1989015992A |
| 著作权人 | 日本電信電話株式会社 |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Frequency stabilization of a plurality of light sources |
| 英文摘要 | PURPOSE:To prevent the deterioration of stability and control band-with even in the case where the number of light sources increases, by feeding back a signal to a physical quantity for controlling each laser oscillation frequency in a manner in which the signal generating in accordance with the frequency deviation from each peak of transmittance has a minimum value. CONSTITUTION:After each output of semiconductor laser is coupled to a fiber, each of them is coupled to a single fiber with a wave combining device, and said fiber is coupled to a waveguide type ring resonator 3 Frequency- dependency has peaks at an equal frequency interval. Frequencies of laser 21-2n are previously set at the vicinities of peaks P1-Pn. When the frequency interval is DELTAf, the frequency range capable of stabilization is + or -DELTAf/2. The output of a phtodiode 5 which receives the transmitted light is superposed with frequency components F1-Fn. This output is divded into (n) portions which are subjected to mixing with frequencies F1-Fn, by oscillators 11-1n. From the mixed frequencies, low frequency components are extracted through lowpass filters B1-Bn, which are negatively fed back to the bias circuit of each laser. The respective light frequencies of the respective lasers f1-fn can be stabilized at a constant frequency interval. |
| 公开日期 | 1989-01-19 |
| 申请日期 | 1987-07-10 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/88087]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | 日本電信電話株式会社 |
| 推荐引用方式 GB/T 7714 | TOBA HIROSHI,NOSU KIYOSHI,ODA KAZUHIRO. Frequency stabilization of a plurality of light sources. JP1989015992A. 1989-01-19. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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