Twisting effect on LP11 mode in optical fibers

被引：1

作者：

Xu, Yao ^{[1
,2
]}

Ren, Guobin ^{[1
,2
]}

Jiang, Youchao ^{[1
,2
]}

Wu, Yue ^{[1
,2
]}

Jin, Wenxing ^{[1
,2
]}

Shen, Ya ^{[1
,2
]}

Jian, Shuisheng ^{[1
,2
]}

机构：

[1] Beijing Jiaotong Univ, Key Lab All Opt Network & Adv Telecommun Network, Beijing 100044, Peoples R China

[2] Beijing Jiaotong Univ, Inst Lightwave Technol, Beijing 100044, Peoples R China

来源：

OPTIK | 2018年 / 158卷

基金：

中国国家自然科学基金;

关键词：

Optical fibers; Mode pattern; Fiber characterization; Fiber twisting;

D O I：

10.1016/j.ijleo.2017.12.106

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the light propagating in a dual mode optical fiber with torsional mechanical stress. By twisting the fiber and distinguishing the LP01 and LP11 modes using wavelength scanning spatially and spectrally resolved imaging technique (S2 Imaging), we show the twist induced mode variation of the intensity distribution and phase pattern of the fiber. The linear and nonlinear variation of the mode rotation with the physical twist of the fiber is observed and discussed. The experimentally obtained LP11 mode intensity fluctuation of the fiber is also presented. The mechanism provides a way to control the fiber mode pattern, which may find potential use in long-range robust transmission of mode division multiplexing. (C) 2017 Elsevier GmbH. All rights reserved.

引用

页码：220 / 224

页数：5

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