Quartz optical fiber bundle

The invention discloses a quartz optical fiber bundle. The quartz optical fiber bundle comprises a plurality of bare fibers, a quartz filling layer and a resin layer; with one bare fiber taken as thecenter, the rest bare fibers are tightly arranged around the center; the plurality of bare fibers are tightly arranged to form a bare fiber bundle; the bare fiber bundle is sequentially provided withthe quartz filling layer and the resin layer from inside to outside; the quartz filling layer is formed by fusing quartz tubes; the plurality of quartz optical fibers are directly fused into the bundle to replace a single optical fiber; and the diameter of the end surface of the fused optical fiber bundle is far greater than the core diameter of the single optical fiber, so that an effective receiving area is increased, sunlight is more easily coupled into the optical fiber, and the sunlight coupling efficiency is improved. 本发明公开了一种石英光纤束，包括若干根裸纤、石英填充层以及树脂层，其中，以一根裸纤为中心，其余多根裸纤围绕中心紧密排列，若干根裸纤紧密排列构成一裸纤束，裸纤束自内向外依次设置石英填充层以及树脂