深圳大学学报（理工版）2012，Vol.29Issue(2)：129-135,7.DOI:10.3724/SP.J.1249.2012.02129
微纳光纤偏振分束器特性研究
The characteristics of the polarization beam splitters based on micro/nano optical fiber
摘要
Abstract
The characteristics of the polarization coupling of two micro/nano optical fibers that are closed to each other were investigated by three dimension full vector beam propagation method (3D FVBPM). The analytical results of their characteristics of the polarization coupling show that a polarization beam splitter (PBS) based on coupled micro/nano optical fiber can be constructed. Considering the polarization splitting performance of the component, the geometric parameters of the PBS, such as the diameter of micro/nano optical fiber and the gap between them are optimized. The optimal parameters are as follows: the diameter of about 0. 9 μm, the gap of about 0. 5 μm and the length of 218 μm. Numerical simulations show that we can acquire fabrication tolerances for the polarization splitter at a wavelength of 1 550 nm when the extinction ratio of polarization of both output ports of the splitter are larger than 15 dB, such as a bandwidth of about 10 nm, overlapping length of ±2 μm, and about -3 ~2 nm for the diameter and gap respectively.关键词
光纤光学/光纤耦合/3维全矢量光束传输法/偏振/数值分析/微纳光纤Key words
fiber optics/ coupled optical fibers/ 3D full vector beam propagation method/ polarization/ numerical analysis/ micro/nano optical fiber分类
数理科学引用本文复制引用
陈哲,翟艳芳,余健辉,张军,杜垚..微纳光纤偏振分束器特性研究[J].深圳大学学报（理工版）,2012,29(2):129-135,7.基金项目
国家自然科学基金资助项目(11004086,61177075) （11004086,61177075）
