Crosstalk Behaviors in Multicore Fibers Under Deployed Conditions: Role of Structural Fluctuations

被引：0

作者：

Koshiba, Masanori ^{[1
]}

Saitoh, Kunimasa ^{[1
]}

机构：

[1] Hokkaido Univ, Grad Sch Informat Sci & Technol, Sapporo 0600814, Japan

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2025年 / 37卷 / 06期

关键词：

Correlation; Optical fiber theory; Fluctuations; Claddings; Bending; Standards; Refractive index; Multicore processing; Crosstalk; Optical fiber polarization; Correlation length; coupled-power theory; deployed multicore fiber; inter-core crosstalk; power-coupling coefficient; structural fluctuation; INTERCORE CROSSTALK; PHYSICAL INTERPRETATION; CORE FIBERS; DESIGN; MACROBEND;

D O I：

10.1109/LPT.2025.3547695

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Recently, experimental characterizations of deployed multicore fibers (MCFs) with a standard cladding diameter (125 mu m) have been intensively reported; however, there have been a limited number of theoretical works to elucidate inter-core crosstalk (XT) properties during the cabling and installation processes. In this letter, the effect of a correlation length on the XT behaviors in MCFs under deployed conditions is investigated on the basis of a coupled-power theory. Comparing the calculated results to the measured results, it is confirmed that the XT behaviors in deployed MCFs are mainly dominated by structural fluctuations (random fluctuations of the refractive index distribution or of the fiber geometry along the MCF) and that the correlation length is estimated to be on the order of millimeters.

引用

页码：353 / 356

页数：4

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