Room-temperature continuous-wave operation of green vertical-cavity surface-emitting lasers with a curved mirror fabricated on {20−21} semi-polar GaN
Tatsushi Hamaguchi, Yukio Hoshina, Kentaro Hayashi, M. Tanaka, Masamichi Ito, Maho Ohara, Tatsurou Jyoukawa, Noriko Kobayashi, Hideki Watanabe, Mikihiro Yokozeki Mikihiro Yokozeki, Rintaro Koda, Katsunori Yanashima
Abstract
Abstract We demonstrate a room-temperature continuous-wave operation of green vertical-cavity surface-emitting laser (VCSEL) with a 20 μ m long cavity possessing a dielectric curved mirror formed over a {20−21} semi-polar gallium nitride substrate. The emission wavelength and the threshold current were 515 nm and 1.8 mA, respectively. We also confirmed that white light is generated by overlaying three prime colors of light, i.e. red, blue and green, emitted only from VCSEL.
Topics & Concepts
Materials scienceVertical-cavity surface-emitting laserLaserOptoelectronicsOpticsContinuous waveWavelengthSubstrate (aquarium)PolarGreen laserGallium nitrideLayer (electronics)PhysicsComposite materialOceanographyAstronomyGeologySemiconductor Lasers and Optical DevicesGaN-based semiconductor devices and materialsSemiconductor Quantum Structures and Devices