https://scholars.lib.ntu.edu.tw/handle/123456789/580565
標題: | Design and Optimization of VCSELs for up to 40-Gb/s Error-Free Transmission through Impurity-Induced Disordering | 作者: | Peng C.-Y Cheng H.-T Kuo H.-C CHAO-HSIN WU |
關鍵字: | Design; Laser pulses; Optimization; Semiconductor quantum wells; Transceivers; Transmissions; Characteristic temperature; Current injection efficiency; Design and optimization; Electrical characteristic analysis; Error free transmission; High Speed; Impurity induced disordering; On-off keying modulations; Surface emitting lasers | 公開日期: | 2020 | 卷: | 67 | 期: | 3 | 起(迄)頁: | 1041-1046 | 來源出版物: | IEEE Transactions on Electron Devices | 摘要: | This article describes an optimized design and process for the improvement of the electrical properties of vertical-cavity surface-emitting lasers (VCSELs) via the impurity-induced disordering (IID) technology. Through the IID process, the electrical current path can be tailored to detour around the defect centers introduced by the oxidation process, resulting in a noticeable improvement in the dc and the RF characteristics of the IID VCSEL. The threshold current was reduced from 0.341 to 0.225 mA due to better current injection efficiency in the IID VCSEL. The characteristic temperature of the IID VCSEL increased from 106 to 150 K, and the slope of the I-V characteristics under low-level-injection regime could be improved to a factor of exp(qV/1.2 kT). The RF characteristics also echoed the dc characteristics, which the optical bandwidth of the IID VCSEL enhanced from 18.95 to 23.49 GHz, and showed a prominent difference on the K factor (0.26 to 0.22 ns) and the D factor (7 to 11 GHz/(mA)1/2). The IID VCSEL is then employed for a data transmission link, an eye diagram was characterized at up to 44 Gb/s and passed 40-Gb/s error-free testing under on-off-keying (OOK) modulation. ? 2020 IEEE. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85080867900&doi=10.1109%2fTED.2020.2966364&partnerID=40&md5=e4cc67560dc9b2e8947e48959afd60df https://scholars.lib.ntu.edu.tw/handle/123456789/580565 |
ISSN: | 00189383 | DOI: | 10.1109/TED.2020.2966364 |
顯示於: | 電機工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。