Single mode distributed feedback lasers
文献类型：专利
| 作者 | MASSARA, BENEDICT AENEAS; MOSELEY, RICHARD WILLIAM; SILVER, MARK; SAMUEL PLUMB, RICHARD GORDON |
| 专利号 | US20050078724A1 |
| 著作权人 | AGILENT TECHNOLOGIES, INC. |
| 国家 | 美国 |
| 文献子类 | 发明申请 |
| 其他题名 | Single mode distributed feedback lasers |
| 英文摘要 | The present invention relates to solid state distributed feedback (DFB) lasers in which a phase shift is introduced to optical radiation circulating in a laser cavity in order to stabilise the laser into single mode operation. A solid state single mode distributed feedback (DFB) laser (1), comprises a laser waveguide (10), a DFB grating structure (6) optically coupled to the waveguide (10) for stabilising the wavelength of optical radiation (7) in the waveguide (10), one or more current conduction regions (4′, 4″) for guiding an applied electrical current to pump the laser waveguide (10) and at least one current constriction region (40) adjacent the one or more current conduction regions (4′, 4″). The DFB structure (6) extends in the current constriction region (40) and at least one of the current conduction regions (4′, 4″). The current conduction and constriction regions (4′, 4″, 40) are arranged so that an electrical current (34) applied to the current conduction region(s) (4′, 4″) pumps the laser waveguide (10) preferentially in the current conduction regions (4′, 4″) compared with the electrical constriction region (40) and thus varies the effective index of refraction (38) of the laser waveguide (10) in these regions (4′, 4″, 40) in order to stabilise the optical radiation (7) for single mode operation of the laser (1). |
| 公开日期 | 2005-04-14 |
| 申请日期 | 2003-08-20 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/43969]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | AGILENT TECHNOLOGIES, INC. |
| 推荐引用方式 GB/T 7714 | MASSARA, BENEDICT AENEAS,MOSELEY, RICHARD WILLIAM,SILVER, MARK,et al. Single mode distributed feedback lasers. US20050078724A1. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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