Spatiotemporal mode decomposition of ultrashort pulses in linear and nonlinear graded-index multimode fibers

被引：0

作者：

MARIO ZITELLI ^{[1
]}

VINCENT COUDERC ^{[2
]}

MARIO FERRARO ^{[1
]}

FABIO MANGINI ^{[1
]}

PEDRO PARRA-RIVAS ^{[1
]}

YIFAN SUN ^{[1
]}

STEFAN WABNITZ ^{[1
,3
]}

机构：

[1] Department of Information Engineering, Electronics and Telecommunications, Università degli Studi di Roma Sapienza

[2] Université de Limoges, XLIM

[3] CNR-INO, Istituto Nazionale di Ottica

来源：

Photonics Research | 2023年 / 05期

基金：

欧盟地平线“2020”; 欧洲研究理事会;

关键词：

D O I：

暂无

中图分类号：

TN253 [光纤元件];

学科分类号：

0702 ; 070207 ;

摘要：

We develop a spatiotemporal mode decomposition technique to study the spatial and temporal mode power distribution of ultrashort pulses in long spans of graded-index multimode fiber, for different input laser conditions. We find that the beam mode power content in the dispersive pulse propagation regime can be described by the Bose–Einstein law, as a result of the process of power diffusion from linear and nonlinear mode coupling among nondegenerate mode groups. In the soliton regime, the output mode power distribution approaches the Rayleigh–Jeans law. ? 2023 Chinese Laser Press

引用

页码：750 / 756

页数：7

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