Analysis of a highly birefringent photonic crystal fiber with ellipse-rhombus air core
Analysis of a highly birefringent photonic crystal fiber with ellipse-rhombus air core
复制标题
椭圆菱形空芯高双折射光子晶体光纤分析
DOI：
10.1016/j.ijleo.2014.08.021
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发表时间：
2014
期刊：
影响因子：
3.1
通讯作者：
Lv Chongyang
中科院分区：
文献类型：
--
作者：
Yu Fei;Wang Zhenpeng;Zhang Yonggang;Yu Yukui;Lv Chongyang
提出了一种新颖的小有效模面积高双折射光子晶体光纤。在光纤内层设计了四个椭圆形空气孔以产生各向异性，使光纤具有高双折射和小有效模面积的特性。采用全矢量有限元法分析了椭圆空气孔对光纤的有效折射率、双折射率、有效模场面积和非线性系数的影响。模拟结果表明，在椭圆形空气孔的距离和半长轴d> 2.3 μm和d> 1.4 μm的条件下，双折射可以达到10− 3量级。通过调整参数sdanda，可以获得不同的有效模面积和非线性系数，这体现了所提出的光子晶体光纤的灵活性。
A novel highly birefringent photonic crystal fiber with small effective mode area is proposed. Four elliptical air-holes are designed in the internal layer of the fiber to cause the anisotropy, and the fiber has the property of highly birefringence and small effective mode area. The influences of elliptical air-holes on effective index, birefringence, effective mode area and nonlinear coefficient are analyzed by using full-vector finite element method (FEM). Simulation results show the birefringence can achieve the magnitude of 10−3under the condition ofd> 2.3 μm anda> 1.4 μm, whichdandaare the distance and semimajor axis of elliptical air holes. By adjusting the parametersdanda, different effective mode area and nonlinear coefficient can be obtained, which demonstrates the flexibility of the proposed photonic crystal fiber.