Structure and manufacturing method for single-wavelength and multi-wavelength distributed feedback lasers | |
LEE, SAN-LIANG; JANG, ING-FA | |
2005-02-10 | |
著作权人 | NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY |
专利号 | US20050031009A1 |
国家 | 美国 |
文献子类 | 发明申请 |
其他题名 | Structure and manufacturing method for single-wavelength and multi-wavelength distributed feedback lasers |
英文摘要 | A single-wavelength distributed feedback (DFB) laser structure is provided. The laser structure having two sections includes an active-material layer for generating a laser having a wavelength in a specific range, two cladding layers respectively covering an upper and a bottom sides of the active-material layer for forming a waveguide structure, a phase shift layer having a specific thickness for controlling a difference between Bragg wavelengths of the two sections, a wet-etching stop layer positioned between the active-material layer and the phase shift layer, and a grating layer having a specific period for determining an illuminating wavelength, wherein a difference between the two sections is an existence of the phase shift layer thereon, and the existence of the phase shift layer causes a difference of the effective refractive indices between the two sections so as to generate a fixed difference between Bragg wavelengths of the two sections. |
公开日期 | 2005-02-10 |
申请日期 | 2003-08-07 |
状态 | 授权 |
内容类型 | 专利 |
源URL | [http://ir.opt.ac.cn/handle/181661/64267] |
专题 | 半导体激光器专利数据库 |
作者单位 | NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY |
推荐引用方式 GB/T 7714 | LEE, SAN-LIANG,JANG, ING-FA. Structure and manufacturing method for single-wavelength and multi-wavelength distributed feedback lasers. US20050031009A1. 2005-02-10. |
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