Simple analytical expression for crosstalk estimation in homogeneous trench-assisted multi-core fibers

被引：86

作者：

Ye, Feihong ^{[1
]}

Tu, Jiajing ^{[2
]}

Saitoh, Kunimasa ^{[2
]}

Morioka, Toshio ^{[1
]}

机构：

[1] Tech Univ Denmark, Dept Photon Engn, DTU Foton, DK-2800 Lyngby, Denmark

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

来源：

OPTICS EXPRESS | 2014年 / 22卷 / 19期

关键词：

TRANSMISSION;

D O I：

10.1364/OE.22.023007

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An analytical expression for the mode coupling coefficient in homogeneous trench-assisted multi-core fibers is derived, which has a simple relationship with the one in normal step-index structures. The amount of inter-core crosstalk reduction (in dB) with trench-assisted structures compared to the one with normal step-index structures can then be written by a simple expression. Comparison with numerical simulations confirms that the obtained analytical expression has very good accuracy for crosstalk estimation. The crosstalk properties in trench-assisted multi-core fibers, such as crosstalk dependence on core pitch and wavelength-dependent crosstalk, can be obtained by this simple analytical expression. (C) 2014 Optical Society of America

引用

页码：23007 / 23018

页数：12

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