The influence of refractive index profile on supercontinuum beams self-cleaning in graded index multimode fiber

被引：0

作者：

Dai, Jianan

Zhu, Xiran

Zhang, Bin

Hou, Jing ^{[1
]}

机构：

[1] Natl Univ Def Technol, Coll Adv Interdisciplinary Studies, Changsha, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 2024年 / 171卷

关键词：

Graded-index multimode fiber; Index-profile parameters; Beam self-cleaning; Supercontinuum (SC) generation; PULSE-PROPAGATION; MODE; INSTABILITY; GENERATION; DYNAMICS;

D O I：

10.1016/j.optlastec.2023.110454

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a theoretical scheme to improve the fundamental mode energy proportion of the supercontinuum (SC) generation in graded-index multimode fiber (GRIN-MMF). With this scheme, we conduct numerical investigations into the influence of various core refractive index profile parameters on beam-self cleaning of fundamental mode, establishing an optimal parameter range (alpha = 2.0 2.06). Within this range, the energy proportion of the fundamental mode gradually increases from 32% to 65% as the propagation distance. Additionally, our simulation provides the initial demonstration that the supercontinuum (SC) broadening is correlated with the distribution of core refractive indices within the graded-index multimode fiber.

引用

页数：6

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