双零色散光子晶体光纤结构参数的变化对其性能的影响  

Effect of structure parameters changes on the properties of photonic crystal fiber with two zero-dispersion wavelengths

作　　者：姜凌红[1] 侯蓝田[1] 

机构地区：[1]燕山大学红外光纤与传感研究所,亚稳材料制备技术与科学重点实验室,秦皇岛066004

出　　处：《物理学报》2010年第2期1095-1100,共6页Acta Physica Sinica

基　　金：国家重点基础研究发展计划(批准号:2003CB314905);国家自然科学基金重点项目(批准号:60637010);国家高技术研究发展计划(批准号:2003AA311010)资助的课题~~

摘　　要：应用多极法,研究了正六边形结构光子晶体光纤的结构参数改变时,波长范围在0.8—1.8μm之间的双零色散光子晶体光纤的色散特性和非线系数随波长的变化规律.对具有相同结构参数的正六边形结构和正八边形结构进行比较,得到正六边形结构的双零色散光子晶体光纤的色散更加平坦,非线性系数有明显增大的结果.因此,正六边形结构更容易获得色散平坦的高非线性双零色散光子晶体光纤.最终设计了在800nm附近具有平坦色散和高非线性的正六边形双零色散光子晶体光纤.When the hexagonal structure parameters are changed, the dispersion coefficient and nonlinear coefficient with two zero-dispersion of photonic crystal fiber as a function of wavelength is investigated from the near infrared wavelength to the range of communication band by multipole method. We compare photonic crystal fiber of hexagonal structure with that of octagonal structure, both of which have the same structural parameters. The two zero-dispersion wavelengths of photonic crystal fiber with hexagonal structure are much flatter and the nonlinear coefficient of photonic crystal fiber with hexagonal structure is significantly increased, so the photonic crystal fiber with hexagonal structure is more accessible to flattened high nonlinearity and two zero-dispersion wavelengths. It is shown from numerical results that it is possible to design photonic crystal fiber of hexagonal structure with two zero-dispersion and high nonlinear coefficient around 800 nm.

关 键 词：光子晶体光纤 双零色散 非线性系数 多极法 

分 类 号：TN253[电子电信—物理电子学] TB383[一般工业技术—材料科学与工程]