Design of elliptical-core mode-selective photonic lanterns with six modes for MIMO-free mode division multiplexing systems

被引：21
|
作者：
Sai, Xiaowei [1 ]
Li, Yan [1 ]
Yang, Chen [2 ]
Li, Wei [1 ]
Qiu, Jifang [1 ]
Hong, Xiaobin [1 ]
Zuo, Yong [1 ]
Guo, Hongxiang [1 ]
Tong, Weijun [2 ]
Wu, Jian [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China
[2] Yangtze Opt Fibre & Cable Joint Stock Ltd Co, State Key Lab Opt Fibre & Cable Manufacture Techn, Wuhan 430074, Hubei, Peoples R China
来源：
OPTICS LETTERS | 2017年 / 42卷 / 21期
基金：
中国国家自然科学基金;
关键词：
FIBER;
D O I：
10.1364/OL.42.004355
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Elliptical-core few mode fiber (EC-FMF) is used in a mode division multiplexing (MDM) transmission system to release multiple-input-multiple-output (MIMO) digital-signal-processing, which reduces the cost and the complexity of the receiver. However, EC-FMF does not match with conventional multiplexers/de-multiplexers (MUXs/DeMUXs) such as a photonic lantern, leading to extra mode coupling loss and crosstalk. We design elliptical-core mode-selective photonic lanterns (EC-MSPLs) with six modes, which can match well with EC-FMF in MIMO-free MDM systems. Simulation of the EC-MSPL using the beam propagation method was demonstrated employing a combination of either step-index or graded-index fibers with six different sizes of cores, and the taper transition length of 8 cm or 4 cm. Through numerical simulations and optimizations, both types of photonic lanterns can realize low loss transmission and low crosstalk of below -20.0 dB for all modes. (C) 2017 Optical Society of America
引用
收藏
页码：4355 / 4358
页数：4
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