Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7925055 | Optics Communications | 2018 | 5 Pages |
Abstract
Surface emitting distributed feedback (SE-DFB) semiconductor lasers with second-order grating have become one of research hotspots due to be in terms of high beam quality, narrow linewidth and so on. The diffraction and feedback of the second-order grating are utilized to achieve wavelength stabilization and surface emitting. In the paper, SE-DFB laser with asymmetric waveguide is designed, and the effect of waveguide structures on slope efficiency is discussed. The results show that the slope efficiency of SE-DFB laser with P-asymmetric waveguide is 1.04Â W/A which enhances 0.12 W/A than the device with symmetric waveguide. It provides an idea for SE-DFB laser research.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Yina Hai, Xiaohui Ma, Yonggang Zou, Haizhu Wang, Jie Fan, Qihe Chen, Yunfeng Bai, Jianing Dong,