Fused silica fiber bundle for sunlight transmission and optical cable

The utility model discloses a fused silica optical fiber bundle for sunlight transmission. The optical fiber comprises a reinforcer, a plurality of bare fibers, a quartz filling layer and a resin layer, wherein the plurality of bare fibers are tightly arranged around the reinforcing member; the plurality of bare fibers are tightly arranged to form a bare fiber bundle; the bare fiber bundle is sequentially provided with a quartz filling layer and a resin layer from inside to outside; the quartz filling layer is formed by fusing the quartz tube, the plurality of quartz optical fibers are directly fused into a 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 the effective receiving area is increased, sunlight is more easily coupled into the optical fiber, and the sunlight coupling efficiency is improved. 本实用新型公开了一种太阳光传输用熔融石英光纤束，包括加强件、若干根裸纤、石英填充层以及树脂层，其中，若干根裸纤围绕加强件紧密排列，若干根裸纤紧密排