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The high power and single mode vertical cavity surface emitting laser(VCSEL)s with photonic crystal structures have been proposed and fabricated by reducing substantially the hole numbers used in the photonic crystal structures. It is found that only six holes enable VCSELs to operate a single mode and the reliability can be enhanced by filling the holes with polyimide. The single mode lasing characteristics were analyzed by varying the oxide aperture and the hole diameter in photonic crystal structures. As a result, the single mode lasing can be stably obtained in the photonic crystal vertical cavity surface emitting lasers.Keywords: Vertical cavity surface emitting laser, Photonic crystal, Single mode lasing, Semiconductor laserOCIS codes: (140.7260) Vertical cavity surface emitting lasers; (230.5298) Photonic crystals; (140.3570) Lasers, single-mode; (140.5960) Semiconductor lasers

High Power and Single Mode Lasing Characteristics in Vertical Cavity Surface Emitting Laser by Varying Photonic Bandgap Structures