We experimentally demonstrate high-speed visible light communication (VLC) and high-quality solid-state lighting (SSL) using polymethyl-methacrylate-doped phosphor film based on cesium lead bromide quantum dot ( CsPbB r 3 -QD) and potassium fluorosilicate K 2 Si F 6 : M n 4 + , which is excited by a blue gallium nitride laser diode. A 1.6 Gbps data rate is achieved by employing a non-return-to-zero on–off keying modulation scheme. The measured bit error rate of 2.7 × 10 − 3 adheres to the standard threshold ( 3.8 × 10 − 3 ) of forward error correction. Moreover, the generated white-light source has a high color rendering index of 93.8 and a correlated color temperature of 4435 K, and it exhibits a Commission Internationale de l’Eclairage (CIE) 1931 chromaticity coordinate at (0.3556, 0.3520), which is close to the ideal CIE value of white light (0.3333, 0.3333). This work opens up exciting possibilities for future high-speed indoor VLC and high-quality SSL.

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In this study, we proposed and experimentally demonstrated the blue laser diode-based remote solid-state lighting using plastic optical fiber and phosphor film. The light-emitting part’s vicinity is free of electricity, which eliminates the risk of explosion and electromagnetic interference (EMI) and thus can find wide applications in hazardous or sensitive locations, such as gas plants and aircraft, to name a few. The color attributes of generated white light were studied by calculating correlated color temperature (CCT), color rendering index (CRI), Commission Internationale de l’Eclairage (CIE), and D u v . The maximum CRI of 77.6 with a corresponding CCT of 4674 K has been achieved at 360 mA. By changing the bias current from 280 mA to 360 mA, the D u v of the generated light source is extremely small ranging from − 0.00524 to − 0.00678 , which indicates that the obtained white light is perceived as neutral in appearance. The CIE chromaticity coordinates (x, y) of generated white light are very close to the Planckian locus. At 360 mA, CIE chromaticity coordinates (x, y) exhibit at (0.3528, 0.3443), which are very close to the standard neutral white light’s (0.333, 0.333). The proposed technique can be implemented in a hazardous environment.