Single Radial/Azimuthal Mode Photonic Crystal Fibers With Anisotropic Elliptical-Hole Lattice Core
Single Radial/Azimuthal Mode Photonic Crystal Fibers With Anisotropic Elliptical-Hole Lattice Core
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DOI：
10.1109/lpt.2017.2702622
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发表时间：
2017-08
影响因子：
2.6
通讯作者：
Zheng Zhong;Yasuhide Tsuji;M. Eguchi
中科院分区：
文献类型：
--
作者：
Zheng Zhong;Yasuhide Tsuji;M. Eguchi
提出了一种新型的具有各向异性椭圆孔晶格芯的单径/方位模光子晶体光纤，并进行了数值模拟。通过在纤芯中引入椭圆孔来实现高双折射，这被认为是打破对称性的有效方法。利用全矢量有限元法，我们可以优化光纤的参数，并详细研究波导特性。辐射对称EHLC光子晶体光纤的单径模传输带宽为210 nm（波长范围为1.45 ~ 1.66 μ m）。同时，利用多环EHLC结构的光子晶体光纤实现了100 nm（波长范围为1.50 ~ 1.60 μ m）的单方位模传输。预计所提出的PCF在模式复用系统中将非常方便。
Novel single radial/azimuthal mode photonic crystal fibers (PCFs) with an anisotropic elliptical-hole lattice core (EHLC) are proposed and demonstrated numerically. High birefringence is achieved by introducing elliptical holes into the core, which is considered as an effective way to break the symmetry. With a full vectorial finite element method, we can optimize the fiber parameters and also investigate the wave guiding characteristics in detail. A bandwidth of 210 nm (the wavelength range from 1.45 to $1.66~\mu {\mathrm{ m}}$ ) has been achieved for single radial mode transmission by the PCF with an actinomorphic EHLC. Meanwhile, a bandwidth of 100 nm (the wavelength range from 1.50 to $1.60~\mu {\mathrm{ m}}$ ) for single azimuthal mode transmission has been also achieved by the PCF with a multi-annulus EHLC. It is anticipated that the proposed PCFs would be of very much convenience in mode multiplexing systems.