双孔单元四边形晶格光子晶体光纤特性的研究  

Properties of regular-lattice photonic crystal fiber based on a double-hole unit

作　　者：刘旭安[1,2] 程和平 焦铮[1] LIU Xu’an;CHENG Heping;JIAO Zheng(School of Information Engineening, Huangshan University, Huangshan 245041, China;Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences,Hefei 230031,China)

机构地区：[1]黄山学院信息工程学院,黄山245041 [2]中国科学院安徽光学精密机械研究所光子器件与材料安徽省重点实验室,合肥230031

出　　处：《激光技术》2019年第1期48-52,共5页Laser Technology

基　　金：安徽省高等学校自然科学研究重点资助项目(KJ2018A0406);黄山学院人才启动资助项目(2016xkjq001)

摘　　要：为了获得双空气孔单元四边形晶格排列光子晶体光纤的光学特性,采用有限元分析法对该型光纤进行了数值模拟计算,得到了该型光纤的双折射、限制损耗、偏振拍长及色散特性结果。结果表明,与椭圆空气孔方形晶格排列光子晶体光纤相比,在相同的空气占空比条件下,双空气孔单元方形晶格排列光子晶体光纤可以获得更高的双折射特性,达到10^(-2)量级;该型光纤两偏振模的限制损耗差可达10~3量级。该型光纤易于制造,在光纤通信及光纤传感等领域有一定的应用前景。In order to obtain optical characteristics of the photonic crystal fiber with double air holes and quadrilateral lattice arrangement,the finite element method was used to simulate the fiber.The results of birefringence,limiting loss,polarization beat length and dispersion characteristics of the fiber were obtained.The results show that,compared with the elliptical air hole photonic crystal fiber with square lattice arrangement,the double air hole photonic crystal fiber with square lattice arrangement can obtain higher birefringence characteristics,reaching10^-2orders of magnitude,under the same air duty cycle conditions.The limiting loss difference of the two polarization modes of the fiber can reach10^3order of magnitude.This type of optical fiber is easy to manufacture,and has a certain application prospect in optical fiber communication and optical fiber sensing.

关 键 词：光纤光学 光子晶体光纤 有限元法 双折射 限制损耗 

分 类 号：TN253[电子电信—物理电子学]