4 Gbps direct modulation of 450 nm GaN laser for high speed visible light communication.
We demonstrate high speed data transmission with a commercial high power GaN laser diode at 450 nm. 2.6 GHz bandwidth was achieved at an injection current of 500 mA using a high speed visible light communication setup. Record high 4 Gbps free space data transmission rate was achieved at room temperature.
Optics express