红外空心布拉格光纤损耗特性的研究  

Study on loss characteristics of infrared hollow-core Bragg fibers

作　　者：陈超[1,2] 陈鹤鸣[1,2] 汪静丽[1,2] 赵新彦[1,2] 钱晨[1,2] 

机构地区：[1]江苏省光通信工程技术研究中心,江苏南京210003 [2]南京邮电大学光通信研究所,江苏南京210003

出　　处：《光通信研究》2012年第4期33-35,共3页Study on Optical Communications

基　　金：江苏省科技创新与成果转化(重大科技支撑与自主创新)专项引导资金资助项目(BY2010101)

摘　　要：采用半导体玻璃/有机聚合物作为材料,利用禁带效应,设计了传输波段中心波长位于10.6μm处的空心Bragg(布拉格)光纤。利用COMSOL Multiphysics仿真软件,分析了径向包层数对基模(HE11)传输损耗的影响。结果表明,当包层数增至20层时,其损耗值已降至0.051 4dB/m,明显优于普通硫系化合物光纤最低所能达到的0.6dB/m。这种Bragg光纤既可用于医用高功率二氧化碳激光传输,也适用于远距离红外传输。Using the Photonic-Bandgap effect, this paper designs a hollow-core Bragg fiber with its center wavelength of the transmission waveband at 10. 6/zm with the semiconductor glass and organic polymer as the cladding material and analyzes the effects of the number of the radial cladding on the transmission loss of the fundamental mode HEll by using COMSOL Mul-tiphysics simulation tool, the results show that when the number increases to 20, the loss value falls to 0. 051 4 dB/m, obvi- ously better than 0.6 dB/m, the lowest value the ordinary sulfur compound fibers can reach. This kind of Bragg fiber can be applied to both medical high power COz laser transmission and long-distance infrared transmission.

关 键 词：BRAGG光纤 二氧化碳激光 红外波段 传输损耗 

分 类 号：TN818[电子电信—信息与通信工程]