High bandwidth series-biased green micro-LED array toward 6 Gbps visible light communication
Runze Lin, Zuxin Jin, Pengjiang Qiu, Yue Liao, Jason Hoo, Shiping Guo, Xugao Cui, Pengfei Tian
Abstract
In this Letter, a record modulation bandwidth of 1.31 GHz was achieved by a 10 µm c-plane green micro light emitting diode (micro-LED) at a current density of 41.4 kA/cm 2 . Furthermore, by designing a series-biased 20 µm micro-LED with higher light output power, combined with an orthogonal frequency division multiplexing modulation scheme, a maximum data rate of 5.789 Gbps was achieved at a free-space transmission distance of 0.5 m. This work demonstrates the prospect of c-plane polar green micro-LED in ultrahigh-speed visible light communication, which is expected to realize a high-performance wireless system in the future.
Topics & Concepts
Visible light communicationOpticsLight-emitting diodeBandwidth (computing)Free-space optical communicationModulation (music)Optical communicationMultiplexingOptical wirelessOptoelectronicsLED lampTelecommunicationsMaterials sciencePhysicsWirelessComputer scienceAcousticsOptical Wireless Communication TechnologiesSemiconductor Lasers and Optical DevicesGaN-based semiconductor devices and materials