Photonic crystal vertical-cavity lasers
Photonic crystal confinement in vertical cavity surface-emitting lasers (VCSELs) is a robust and reliable technology for achieving operation in the fundamental lateral mode and is potentially applicable to a variety of materials systems and operating wavelengths. We demonstrate photonic crystal VCSELs operating in a single transverse mode with over 30 dB side mode suppression and over 1 mW of output power. These lasers have been subjected to a post-process technique to introduce the etched holes making up the photonic crystals that surround a centralized defect in which lasing occurs. We also show that coupling between adjacent defects in a photonic lattice is possible, further increasing the power available in the devices.
Photonic crystals, Vertical cavity surface emitting lasers, Oxides, Etching, Laser crystals
Aaron James Danner, Jason C. Lee, James J. Raftery Jr., Kent D. Choquette, "Photonic crystal vertical-cavity lasers," Proc. SPIE 5364, Vertical-Cavity Surface-Emitting Lasers VIII, (16 June 2004); https://doi.org/10.1117/12.539149