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All-silica, large mode area, single mode photonic bandgap fibre with Fabry-Perot resonant structures

机译：具有法布里-珀罗谐振结构的全石英，大模面积，单模光子带隙光纤

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摘要

All-silica, photonic crystal fibres consisting of a low index, silica core surrounded by higher index inclusions embedded in a silica matrix to form a photonic bandgap cladding were numerically analysed. The aim of the investigations was to modify the guiding properties of the fibre by introducing resonant structural entities. These structural modifications are realised by altering the refractive index of certain high index inclusions in the photonic crystal cladding resulting in mode coupling between the core mode and the mode propagated in the modified index region. This results in an increased effective core area of the fundamental core mode and consequently decreased nonlinearity as well as modified effective index compared to the effective index of the unmodified structure and resonant dispersion profile that can be used for pulse compression or optical delay purposes. (C) 2016 Elsevier Inc. All rights reserved.
机译：数值分析了由低折射率的二氧化硅芯和高折射率夹杂物包围的全二氧化硅光子晶体光纤，这些纤芯包裹在二氧化硅基质中，形成光子带隙包层。研究的目的是通过引入共振结构实体来改变纤维的引导性能。通过改变光子晶体覆层中某些高折射率夹杂物的折射率来实现这些结构修改，从而导致纤芯模和在修改的折射率区域中传播的模之间的模耦合。与可用于脉冲压缩或光学延迟目的的未修改结构的有效折射率和共振色散分布相比，这会导致基本核心模式的有效核心面积增加，从而降低非线性度，并改善有效折射率。 （C）2016 Elsevier Inc.保留所有权利。

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