Abstract

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 ($\sim 100{\mathrm{\mu m}}^2$) areas.

© 2015 Optical Society of America

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