Xun Meng
Beijing University of Technology
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Publication
Featured researches published by Xun Meng.
Chinese Physics Letters | 2015
Xun Meng; Xu Chen; Xie Yiyang; Deng Jun; Xu Kun; Chen Hongda
A three-dimensional electrical-thermal coupling model based on the finite element method is applied to study thermal properties of implant-defined vertical cavity surface emitting laser (VCSEL) arrays. Several parameters including inter-element spacing, scales, injected current density and substrate temperature are considered. The actual temperatures obtained through experiment are in excellent agreement with the calculated results, which proves the accuracy of the model. Due to the serious thermal problem, it is essential to design arrays of low self-heating. The analysis can provide a foundation for designing VCSEL arrays in the future.
Chinese Physics Letters | 2015
Xun Meng; Xu Chen; Xie Yiyang; Deng Jun; Xu Kun; Jiang Guoqing; Pan Guanzhong; Chen Hongda
Polarization stable characteristic of vertical cavity surface emitting laser array with rectangular element structure based on proton implantation is achieved. Arrays with different aperture sizes and different array scales are investigated. The maximum orthogonal polarization suppression ratio of a 6 × 6 array with 6 μm; × 4 μm elements is as high as 16.1 dB at 51 mA. The x-polarization dominates y-polarization in the operation current range from the threshold to the saturated current. The full widths at half maximum in far-field profiles for x-polarization and y-polarization are 8.8° and 10.7°, respectively. These results suggest that stable polarization is available in the implant-defined VCSEL array.
Archive | 2015
Xu Chen; Xu Kun; Sun Jie; Deng Jun; Zhu Yanxu; Xie Yiyang; Xun Meng
Archive | 2017
Xu Chen; Pan Guanzhong; Xun Meng; Wang Qiuhua; Xie Yiyang
Archive | 2017
Sun Jie; Xu Chen; Dong Yibo; Xie Yiyang; Xun Meng; Pan Guanzhong; Wang Qiuhua
Archive | 2016
Xu Chen; Pan Guanzhong; Jiang Guoqing; Xun Meng; Jie Yiyang
Archive | 2016
Xu Chen; Zou Deshu; Dong Yibo; Xie Yiyang; Xun Meng; Pan Guanzhong; Wang Qiuhua
Archive | 2016
Xie Yiyang; Xu Chen; Wang Qiuhua; Xun Meng; Pan Guanzhong; Dong Yibo; An Yaning
Archive | 2016
Xu Chen; Pan Guanzhong; Xun Meng; Jiang Guoqing; Xie Yiyang
Archive | 2016
Xie Yiyang; Xu Chen; Wang Qiuhua; Xun Meng; Pan Guanzhong; Dong Yibo; An Yaning