光学
模式(计算机接口)
单模光纤
多路复用
计算机科学
多模光纤
物理
辐射模式
芯(光纤)
光子学
材料科学
多输入多输出
耦合模理论
作者
Sai Xiaowei,Yan Li,Chen Yang,Wei Li,Jifang Qiu,Xiaobin Hong,Yong Zuo,Hongxiang Guo,Weijun Tong,Jian Wu
出处
期刊:Optics Letters
[Optica Publishing Group]
日期:2017-11-01
卷期号:42 (21): 4355-4358
被引量:9
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.
科研通智能强力驱动
Strongly Powered by AbleSci AI