分布帰還型半導体レーザ
文献类型：专利
| 作者 | 木下 順一; 松本 研司; 白石 和則 |
| 发表日期 | 1997-04-25 |
| 专利号 | JP2635649B2 |
| 著作权人 | 株式会社東芝 |
| 国家 | 日本 |
| 文献子类 | 授权发明 |
| 其他题名 | 分布帰還型半導体レーザ |
| 英文摘要 | PURPOSE:To enable wavelength chirp to be controlled and to prevent transmission pulse waveform from being distorted by setting reflection end face phase or diffraction grid phase discontinuity to a specified value of compensating for change of oscillation wavelength as time changes on pulse modulation. CONSTITUTION:A diffraction grid 1 is formed on InP substrate, a phase discontinuity 2 of the grid 1 is formed at the center of resonator, and a non-reflection coating is provided at both end faces 3 and 3' to reduce reflection factor to 3% or less. Then, product kL of a connection coefficient k of light wave by the diffraction grid 1 and the length of resonator is set between 0.8 and 3.0 except closer to 3 and the amount of phase shift theta of the discontinuity 2 is set between npi+0.5pi and npi+0.75pi. In this manner, wavelength fluctuation cancels each other, wavelength chirp (oscillation wavelength changes as time passes) is controlled, and transmission pulse waveform distortion is prevented. |
| 公开日期 | 1997-07-30 |
| 申请日期 | 1988-01-29 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/83588]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | 株式会社東芝 |
| 推荐引用方式 GB/T 7714 | 木下 順一,松本 研司,白石 和則. 分布帰還型半導体レーザ. JP2635649B2. 1997-04-25. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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