Figure 5
From: Phosphorous Diffuser Diverged Blue Laser Diode for Indoor Lighting and Communication

The blue LD with phosphorous diffuser for luminescent white-lighting and optical wireless OFDM communication over a 60-cm free-space link.
Experimental setup of phosphorous diffuser diverged blue LD based luminescent white-lighting and 5.2-Gbit/s 16-QAM OFDM data transmission.