Polarization properties of elliptical core non-hexagonal symmetry polymer photonic crystal fibre

• 来源期刊: 中国物理（英文版）
• 关键词: birefringence elliptical core non-hexagonal symmetry polymer polarization
• 年，卷（期）: 2007,（6）
• 页码范围: 1719-1724
• 页数: 6页
• 语种: 英文

摘要

In this paper, polarization properties and propagation characteristics of polymer photonic crystal fibres with elliptical core and non-hexagonal symmetry structure are investigated by using the full vectorial plane wave method. The results show that the birefringence of the fibre is induced by asymmetries of both the cladding and the core. Moreover, by adjusting the non-symmetrical ratio factor of cladding η from 0.4 to 1 in step 0.1, we find the optimized design parameters of the fibre with high birefringence and limited polarization mode dispersion, operating in a single mode regime at an appropriate wavelength range. The range of wavelength approaches the visible and near-infrared which is consistent with the communication windows of polymer optical fibres.