Using phosphors to enhance reception light for visible light communication

Abstract

Nitride phosphors are widely used in manufacturing white light emitting diodes (LEDs). A visible light communication novelty using nitride phosphor is proposed to realize spectrum shift in light signal reception. Using the phosphor to experiment, the results demonstrate that the optical energy conversion efficiency achieves 80%, the optical transmission reaches 95%. The signal eye diagram represents little impact on signal quality. The experiment results show that the phosphor enhances the received light signal intensity over 3 times at the same distance. The novel solution has immense potential used for indoor and outdoor long distance visible light communication.