By altering the lattice geometry of the photonic crystal (PhC) surface-emitting lasers (PCSELs), we tune the regular lasing band edges of quadratic dispersions to form a single accidental Dirac point of linear dispersion at the Brillouin zone center. This not only increases the mode spacing by orders of magnitude but also eliminates the distributed in-plane feedback to enable single-mode PCSELs of substantially larger area and thus substantially higher output power. The advantages of using accidental Dirac cones are systematically evaluated through two-dimensional in-plane calculations and confirmed by three-dimensional simulations of PhC slab devices.
© 2014 Optical Society of AmericaFull Article | PDF Article
OSA Recommended Articles
Xiao Wang, Haitao Jiang, Yuan Li, Chao Yan, Fusheng Deng, Yong Sun, Yunhui Li, Yunlong Shi, and Hong Chen
Opt. Express 23(4) 5126-5133 (2015)
J. Opt. Soc. Am. B 29(10) 2770-2778 (2012)
Lin Xu, Hai-Xiao Wang, Ya-Dong Xu, Huan-Yang Chen, and Jian-Hua Jiang
Opt. Express 24(16) 18059-18071 (2016)