Kasztelanic Rafal, Michalik Damian, Anuszkiewicz Alicja, Buczynski Ryszard
Opt Express. 2022 Nov 7;30(23):41832-41846. doi: 10.1364/OE.470052.
The objective of the study is to optimize the optical fiber structure for mode-division multiplexing systems using nanostructurization. The nanostructuring technique allows to fabricate fibers with arbitrarily designed (free-form) refractive index distribution based on two glasses. Three optimization schemes have been proposed. The nanostructuring method allows for designing fibers with optical properties similar and even better parameters impossible to produce by other methods. In this proposal, we examined four linearly polarized (LP) few-mode fibers. We report a high effective refractive index difference between modes while maintaining other important parameters for the weakly coupled approach.
本研究的目的是利用纳米结构化优化用于模分复用系统的光纤结构。纳米结构化技术能够基于两种玻璃制造出具有任意设计（自由形式）折射率分布的光纤。已经提出了三种优化方案。纳米结构化方法能够设计出具有相似光学特性的光纤，甚至能实现其他方法无法达到的更好参数。在本方案中，我们研究了四种线偏振（LP）少模光纤。我们报告了在保持弱耦合方法的其他重要参数的同时，各模式之间存在较高的有效折射率差。
