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
收藏
页码：750 / 756
页数：7
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