High Slope Efficiency Bipolar Cascade 905nm Vertical Cavity Surface Emitting Laser

Autor:	Guanzhong Pan, Zhuangzhuang Zhao, Yun Sun, Jingtao Zhou, Dexin Wu, Meng Xun
Rok vydání:	2021
Předmět:	Materials science business.industry Energy conversion efficiency Slope efficiency Laser Epitaxy Electronic Optical and Magnetic Materials Vertical-cavity surface-emitting laser law.invention Lidar law Cascade Thermal Optoelectronics Electrical and Electronic Engineering business
Zdroj:	IEEE Electron Device Letters. 42:1342-1345
ISSN:	1558-0563 0741-3106
Popis:	High-performance two-stage bipolar cascade 905nm vertical cavity surface emitting lasers (VCSELs) are designed and fabricated. Three different designs are investigated to compare the electrical and optical properties. Experimental results show that the current spreading and thermal problems are important factors affecting the device performance. The device with two oxide apertures accompanied with a $1.5\lambda $ -long active region spacing exhibits a very high slope efficiency of 2.27W/A and a relatively high power conversion efficiency of 52.4%. Such high-performance bipolar cascade VCSELs with 905nm are very important for LiDAR and automotive applications.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1155b85dd7c23910e920be079f5cb3b6 https://doi.org/10.1109/led.2021.3098899 Zobrazit plný text záznamu