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.

Phosphor-Converted Laser-Based Illuminant With High Color Rendering Index and Low Blue Light Hazard

“…LDs also exhibit these unique characteristics, including directional beam patterns and compact sizes [10]. The light beam of LDs is more easily coupled into plastic optical fibers than that of LEDs, which separates the lighting parts from electricity and allows LD-based white light sources to be applied in hazardous environments [11]. Therefore, LD-based white illuminants will play an important role in special lighting with multifunctional scenes.…”

Green Technology Solution for Small-World Communication Using Plastic Optical Fiber (POF) and Light Emitting Diode (LED)—Design and Application

“…Because it is optical, polymer fiber is completely immune to electrical noise. That means existing copper wiring or existing networks, such as wireless systems, in the house cannot interfere with data passing through the POF cable, but in certain applications, both technologies are integrated, for example, underwater wireless-to-plastic optical fiber communication systems [8][9][10]. This is very important for multimedia data transmission, in which the quality of the signal could be negatively impacted by external noise.…”