Single-Mode 940 nm VCSELs With Narrow Divergence Angles and High-Power Performances for Fiber and Free-Space Optical Communications. - Zuhaib Khan; Nikolay Ledentsov Jr.; Lukasz Chorchos; Jie-Chen Shih; Yung-Hao Chang; Nikolay N. Ledentsov; Jin-Wei Shi (IEEE Access, 2020)