Violet diode laser based 11.2-Gbit/s point-to-point and 4.4-Gbit/s white lighting communications

For implementing high-speed optical wireless communication (OWC), visible diode lasers have been considered to replace light-emitting diodes (LEDs) because it efficiently provides large modulation bandwidth. Among all visible wavelengths, the violet one exhibits the lowest attenuation coefficient in underwater channel and has potential for white-lighting communication by combining with blue/yellow or red/green/blue phosphors. Moreover, the violet diode laser can also be used for point-to-point (PtP) applications including data storage, high-speed printing, light detection/ranging and so on.