Multiple-wavelength light source and method of controlling oscillation frequencies thereof
文献类型：专利
| 作者 | KOMATSU, KEIRO, C/O NEC CORPORATION |
| 发表日期 | 2000-06-07 |
| 专利号 | EP1006683A2 |
| 著作权人 | NEC ELECTRONICS CORPORATION |
| 国家 | 欧洲专利局 |
| 文献子类 | 发明申请 |
| 其他题名 | Multiple-wavelength light source and method of controlling oscillation frequencies thereof |
| 英文摘要 | A multiple-wavelength light source has a plurality of semiconductor laser devices, a plurality of optical waveguides for leading laser beams from the semiconductor laser devices to respective desired paths, and a plurality of diffraction gratings as external cavities for the semiconductor laser devices. The multiple-wavelength light source can output laser beams of respective wavelengths determined by structural details of the diffraction gratings. The multiple-wavelength light source also has an optical combiner for multiplexing the laser beams from the semiconductor laser devices into a laser beam, an optical wavelength multiplexer/demultiplexer for demultiplexing the laser beam from the optical combiner into a plurality of laser beams of respective desired wavelengths, and outputting the laser beams, a plurality of photodetectors for detecting the laser beams from the optical wavelength multiplexer/demultiplexer and outputting voltages depending on respective detected laser beam power levels, a plurality of heaters disposed near the diffraction gratings for varying temperatures of the diffraction gratings, and a heater current control circuit for supplying currents to the heaters for maximizing the output voltages from the photodetectors. Oscillation wavelengths can be finely adjusted to increase the yield of fabricated devices. |
| 公开日期 | 2000-06-07 |
| 申请日期 | 1999-12-02 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/64756]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | NEC ELECTRONICS CORPORATION |
| 推荐引用方式 GB/T 7714 | KOMATSU, KEIRO, C/O NEC CORPORATION. Multiple-wavelength light source and method of controlling oscillation frequencies thereof. EP1006683A2. 2000-06-07. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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