Highly elliptical core fiber with stress-induced birefringence for mode multiplexing

被引：21
|
作者：
Corsi, Alessandro [1 ]
Chang, Jun Ho [1 ]
Wang, Ruohui [1 ]
Wang, Lixian [2 ]
Rusch, Leslie Ann [1 ]
LaRochelle, Sophie [1 ]
机构：
[1] Univ Laval, Ctr Opt Photon & Lasers COPL, Quebec City, PQ G1V 0A6, Canada
[2] Huawei Technol Canada Co Ltd, Canada Res & Dev, Waterloo, ON N2L 0A4, Canada
来源：
OPTICS LETTERS | 2020年 / 45卷 / 10期
关键词：
POLARIZATION; TRANSMISSION;
D O I：
10.1364/OL.387751
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report the polarization-maintaining properties of a highly elliptical core fiber surrounded by a trench that was designed to optimize the modal effective indices and bending loss for a total of five spatial modes (10 channels). In addition to the asymmetric core structure, the birefringence of the fiber is increased by the thermal stress introduced during the fabrication. The results show a modal birefringence larger than 10(-4) for all guided spatial modes. The mode stability to bending is evaluated by selectively exciting/detecting each spatial mode while perturbing the fiber. This few-mode polarization-maintaining fiber is of interest for multiple-input multiple-output (MIMO)-free mode division multiplexing transmission systems. (C) 2020 Optical Society of America
引用
收藏
页码：2822 / 2825
页数：4
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