Blue Laser Diode-Based Remote Solid-State Lighting Using Plastic Optical Fiber and Phosphor Film for a Hazardous Environment

Abstract

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.