Appl Opt. 2023 Mar 20;62(9):2266-2272. doi: 10.1364/AO.484238.
Illumination sources based on phosphors, pumped by laser diodes (LDs), have seen rapid developments over the past decade. Here, we present a new, to the best of our knowledge, design that features both spectral richness and the capability for high brightness. Complete design details and operational characterization have been described. This basic design can be extended in various ways to customize such lamps for different operational requirements. A hybrid arrangement of both LEDs and an LD is used to excite a mixture of two phosphors. The LEDs, in addition, provide a blue fill-in to enrich output radiation and to tune the chromaticity point inside the white region. The LD power, on the other hand, can be scaled up to generate very high brightness levels that are not achievable with pumping from LEDs alone. This capability is gained using a special transparent ceramic disk that carries the remote phosphor film. We also show that the radiation from our lamp is free from speckle-producing coherence.
基于荧光粉的照明光源，由激光二极管 (LD) 泵浦，在过去十年中得到了快速发展。在这里，我们提出了一种新的设计，据我们所知，这种设计具有丰富的光谱和高亮度的能力。已经描述了完整的设计细节和操作特性。这种基本设计可以通过各种方式扩展，以根据不同的操作要求定制此类灯。将 LED 和 LD 的混合排列用于激发两种荧光粉的混合物。此外，LED 还提供蓝色填充，以丰富输出辐射并调整白色区域内的色度点。另一方面，LD 功率可以扩展到产生仅通过 LED 泵浦无法实现的非常高的亮度水平。这种能力是使用携带远程荧光粉膜的特殊透明陶瓷盘获得的。我们还表明，我们的灯发出的辐射没有产生散斑的相干性。
