reflective loss meaning in Chinese

反射损失

For solid - core optical fibers , great endeavor has been made and several kinds of fibers have been obtained . but the following research indicates that traditional solid - core structure has some deadly disadvantages : one is large reflective loss in input ends because of large reflective index of the solid core ; the other is low transmission threshold because of the structure disfigurements of solid - core . so their performances are far from th e applied requirements
红外实芯光纤的研究已经深入开展了很久，也开发了一系列样品，但后来的实验研究证明，传统的实芯光纤结构存在着很大的缺点：一是芯层材料的折射率比较大，因而耦合时光纤端面的反射损失比较大；二是实芯结构所存在的结构缺陷大大降低了光纤的能量传输阈值，所以其性能还远不能达到应用的要求。