降级(电信)
纤维
光学
情态动词
模式(计算机接口)
群时延和相位时延
维数之咒
模式音量
光纤
互惠的
联轴节(管道)
材料科学
计算机科学
物理
保偏光纤
光纤传感器
电信
人工智能
带宽(计算)
哲学
复合材料
操作系统
高分子化学
冶金
语言学
作者
Xiaohong Chen,Shougang Huang,Liangjin Huang,Zhiping Yan,Zhiyong Pan,Zongfu Jiang,Pu Zhou
出处
期刊:Optics Letters
[Optica Publishing Group]
日期:2024-09-30
卷期号:49 (19): 5583-5583
摘要
The separate diagnosis of mode degradation in few-mode fiber components (FMFCs) is a challenging task due to the reciprocal mode cross talk. In this work, we propose the group delay stretching, combined with the extended spatially and spectrally (S 2 ) resolved imaging technique, to decouple and analyze the mode coupling within the body of the FMFC with short-length pigtails. Through stretching the mode delay by a delay fiber, the degraded modes related to different origins are effectively separated, and the extended S 2 technique quantifies the individual modal weight for each component. Experiments on different types of FMFCs have verified the validity of our method. This method paves the way for optimizing and manipulating the fiber components in the dimensionality of modes.
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