高双折射光子晶体光纤的特性研究  

Research on photonic crystal fiber characteristics with high birefringence

作　　者：程集 姚成宝[1,2,3] 孙文军[1,2,3] 

机构地区：[1]光电带隙材料教育部重点实验室 [2]黑龙江省先进功能材料与激发态重点实验室 [3]哈尔滨师范大学物理与电子工程学院,黑龙江哈尔滨150025

出　　处：《科技资讯》2015年第7期87-89,共3页Science & Technology Information

摘　　要：为了提高光纤的双折射特性,利用石英作基质设计了基于六边形结构的光子晶体光纤,计算并分析了光子晶体光纤的双折射、色散、限制损耗、非线性折射系数等特性。结果表明:波长越大,双折射越大,限制损耗越大,非线性折射系数越小。当光纤结构?为0.9μm,d为0.86μm,为0.58μm,2d为0.54μm时,该光纤在光波长为1.1μm处色散接近于零,双折射可达21026.1??,限制损耗为56.72d B/m,非线性折射系数为64.4W-1km-1,可应用于近红外波段的光纤传感及超连续光谱产生。In order to improve the birefringence,the author designs a photonic crystal fiber based on hexagonal structure by using quartz as material,then calculates and analyses the birefringence,dispersion,loss and nonlinear coefficient of photonic crystal fiber. The result shows that：The birefringence and the loss are greater,then the nonlinear coefficient is smaller with increasing of wavelength. When its cladding air hole pitch is 0.9 p m and large air hole diameter,air hole diameter of third ring,air hole diameter of first ring are 0.86μm,0.58 μm and 0.5pro,the dispersion is close to zero at a wavelength of 1.1 μm,and the loss is 56.72dB/m and the nonlinear coefficient is 64.4W^-1km^-1.The optical fiber sensor and supercontinuum spectrum which can be applied to the near infrared band will generate.

关 键 词：光子晶体光纤 高双折射 色散 非线性折射系数 

分 类 号：TN253[电子电信—物理电子学]