椭圆芯聚合物光子晶体光纤的模场研究  

Study on mode field in elliptical core polymer photonic crystal fiber

作　　者：张亚妮[1] 苗润才[1] 

机构地区：[1]陕西师范大学物理学与信息技术学院

出　　处：《陕西师范大学学报（自然科学版）》2007年第2期38-42,共5页Journal of Shaanxi Normal University：Natural Science Edition

基　　金：国家自然科学基金重点资助项目(60437020);陕西省科技厅科技计划项目(2004K05-G47)

摘　　要：应用理论模型,以聚甲基丙烯酸甲酯(PMMA)为基材,成功制备了直径为150μm、平均孔直径为3.94μm、平均孔间隔为8.75μm的椭圆芯五环六角结构聚合物光子晶体光纤.应用全矢量平面波法,对该光纤的传输模场进行了模拟.根据对称性分析,按照最小波导扇面及相应边界条件对其模式进行归类,并与理论研究进行了对比.该研究为椭圆芯聚合物光子晶体光纤模场的实验测试提供了一定的基础,并证明了基于聚合物制备高双折射保偏光纤的可能性.The six-fold symmetry of photonics crystal fibers （PCFs） is destroyed by delectmg triple adjacent air holes in the core region to form elliptical core in theory, the two orthogonal polarized states of the fundamental mode become non-degeneration, the mode field is strongly linear polarization and appear an ellipse. According to the theoretical model, the elliptical core five ring hexangular structure polymer photonics crystal fiber（PCF） with diameter of 150μm, average hole-diameter of 3.94μm, and average holes spacing of 8.75μm is fabricated successfully based on poly methyl methacry-late （PMMA）. The full-vectorial plane-wave method is applied to simulate the mode fields of fabricated fiber. From symmetry analysis of waveguide modes, the guided modes are classified in the elliptical core polymer photonics crystal fiber by adopting the minimum waveguide sector and its corresponding boundary conditions and are compared with analysis of theory. The research offer a basis for the mode fields experiment of elliptical core polymer PCF and provide a possibility to manufacture high birefringence polarization maintaining fiber based on polymer.

关 键 词：导波光学 光子晶体光纤 椭圆芯 聚合物 

分 类 号：TN929.11[电子电信—通信与信息系统]