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
Opt. Express 22(2) 1906-1917 (2014)
Wanhua Zheng, Wenjun Zhou, Yufei Wang, Anjin Liu, Wei Chen, Hailing Wang, Feiya Fu, and Aiyi Qi
Opt. Lett. 36(21) 4140-4142 (2011)
Peng-Hsiang Weng, Tzeng-Tsong Wu, Tien-Chang Lu, and Shing-Chung Wang
Opt. Lett. 36(10) 1908-1910 (2011)