Influence of external reflection on the TE mode of photonic crystal surface-emitting lasers

摘要

Lasing properties of a square-lattice photonic crystal surface-emitting laser with TE-mode polarization and external reflection are investigated semi-analytically. Modal frequencies, threshold gains, and field intensity envelopes are systematically calculated for various boundary conditions at one of the laser device's four sides. Additionally, external reflection is proposed as a technique for improving mode stability in cavities of modest (similar to 100 mu m(2)) areas. (C) 2015 Optical Society of America