对光纤紫外传输特性进行了研究和分析.利用下陷内包层结构设计，对芯层采用不同含量的锗元素和氟元素掺杂，用等离子体化学汽相沉积工艺进行光纤研制，用相同光纤拉丝工艺制备了样品光纤.通过对所制备样品光纤的光学特性、传输损耗谱、紫外传输效率和稳定性等性能的对比分析测试，得到了光纤芯层不同掺杂含量对光纤紫外性能的影响，并使用光纤芯层中的缺陷对这些测试结果进行了分析，结果表明：光纤的紫外传输效率直接受芯层掺锗的影响，但紫外传输稳定性还受到光纤芯层中其他掺杂元素的影响，有新的缺陷产生作用.

Study the optical fiber′s UV transmission performance,utilize the depressed inner clad design,with different doping content of Ge and F in fiber′s core,use the Plasma Chemical Vapor Deposition process to develop the sample fiber,and adopt the same drawing process control to fabricate the fiber sample.Through contrast the samples′ optical characters,attenuation sprctrum and UV transmission efficiency and stability,get the influence of the fiber′s UV transmission performance by the doping content.With the increase of the Ge and F doping content the fiber′s 305 nm laser transmission efficiency would decrease obviously.The UV laser transmission efficiency changed from 99.3%~97.8%.This would be caused by the increase of the defects content in the fiber′s core,and then it would decrease the UV laser transmission efficiency.However,with the increase of the Ge doping content,the fiber′s UV transmission stability would increase from 904%~97.2%.The results indicate that:the fiber′s UV transmission efficiency was directly influenced by the Ge doping process,then the transmission stability was influenced by the other doping element,the new defects have been generated.