Oxide-aperture-dependent output characteristics of circularly symmetric VCSEL structure

Liao Wen-Yuan^{1, 2}, Li Jian³, Li Chuan-Chuan^{2, 3}, Guo Xiao-Feng¹, Guo Wen-Tao¹, Liu Wei-Hua^{1, 2}, Zhang Yang-Jie^{1, 2}, Wei Xin^{2, 3}, Tan Man-Qing^{1, 2, †}

Spectra of VCSELs with different aperture sizes at (a) I = 2 mA, (b) I = 6 mA, and (c) I = 8 mA.