氟锆酸盐玻璃光纤的研制  

Preparation of fluorozirconate glass fiber

作　　者：胡和方[1] 裔关宏[1] 林凤英[1] 余尧楚[1] 徐永俊 

机构地区：[1]中国科学院上海光学精密机械研究所

出　　处：《光学学报》1990年第11期1033-1039,共7页Acta Optica Sinica

基　　金：国家自然科学基金资助的项目

摘　　要：本文介绍聚全氟乙丙烯包皮的氟锆酸盐(ZrF_4-BaF_2-LaF_3-AlF_3-NaF)玻璃光纤的制备方法.研究了各种工艺因素对氟锆酸盐玻璃和光纤散射损耗的影响.结果表明,选择适当的熔化温度和均化时间,玻璃熔化和光纤拉制时环境中低的水含量是制得的损耗氟锆酸盐玻璃光纤的关键;配合料中引入适量NH_4HF_2,选用温度结构合理的拉丝炉及拉丝工艺也有助于降低光纤的损耗.在此工作基础上,获得了波长2.32μm处损耗为0.24dB/m的氟锆酸盐玻璃光纤.Heavy metal fluoride glass fiber, such as fluorozirconate glass fiber, has attracted considerable attention as a new generation of optical fiber for telecommunication and as a new fiber laser material. This papar presents the preparation techniques of infrared transmitting fiber with ZrF4-BaF2-LaF3-AlF3-NaF (ZBLAN) glass as the core and with teflon FEP as the cladding. The effect of technological parameters on the scattering loss of fluoroziconate glass fiber is studied. It is shown that the glass-melting temperature, the homogenizing time, and the water content in the environment during the glass-melting and the fiber-drawing process are very important technological parameters in order to reduce the scattering loss. Moreover, the NH4HF2 content in the batch, the temperature distribution in the fiber-drawing furnace, and fiber drawing technology also have influence on the scattering loss of the fiber. Based on these studies, the FEP-cladding fluorozirconate glass fiber with a minimum loss of 0.24dB/m at 2.32μm is obtained.

关 键 词：氟锆酸盐 玻璃 光纤 

分 类 号：TN818.04[电子电信—信息与通信工程]