Mode Group Division Multiplexing in Graded-Index Multimode Fibers

Q1 Engineering

Bell Labs Technical Journal Pub Date : 2013-11-27 DOI:10.1002/bltj.21632

Bernd Franz, Henning Bülow

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引用次数: 35

Abstract

Data transmission over multimode fibers has the potential to considerably increase the capacity limit of single-mode fibers by exploiting the spatial dimension. For long-haul systems, mode division multiplexing using one mode per channel in a few-mode fiber requires coherent detection in conjunction with digital multiple input multiple output (MIMO) processing for signal separation. In the following we focus on spatial multiplexing using mode groups rather than spatial modes in standard graded-index multimode fibers. In combination with on-off keying (OOK) modulation and direct detection, these systems might be advantageous for access- and connection-related applications, e.g., for super computer interconnects or in the near metro region at link lengths shorter than about 10 km. In this paper we study the potential of mode groups for mode group division multiplexing (MGDM). Single-mode group transmission experiments at 10 Gb/s per mode group, experimental mode group launching by phase mask, and concepts for passive optical mode demultiplexers are discussed. © 2013 Alcatel-Lucent.

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梯度折射率多模光纤中的模式群分复用

多模光纤上的数据传输有可能通过利用空间维度大大增加单模光纤的容量限制。对于长途系统，在少模光纤中使用每个信道一个模式的模分多路复用需要结合相干检测和数字多输入多输出(MIMO)处理来进行信号分离。在下面，我们将重点讨论在标准梯度折射率多模光纤中使用模式组而不是空间模式的空间复用。与开关键控(OOK)调制和直接检测相结合，这些系统可能有利于访问和连接相关的应用，例如，用于超级计算机互连或在链路长度短于约10公里的城域附近。本文研究了模式群在模式群分复用(MGDM)中的潜力。讨论了10gb /s单模组传输实验、相位掩模发射实验模组以及无源光模解复用器的概念。©2013阿尔卡特朗讯

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Bell Labs Technical Journal 工程技术-电信学

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： The Bell Labs Technical Journal (BLTJ) highlights key research and development activities across Alcatel-Lucent — within Bell Labs, within the company’s CTO organizations, and in cross-functional projects and initiatives. It publishes papers and letters by Alcatel-Lucent researchers, scientists, and engineers and co-authors affiliated with universities, government and corporate research labs, and customer companies. Its aim is to promote progress in communications fields worldwide; Bell Labs innovations enable Alcatel-Lucent to deliver leading products, solutions, and services that meet customers’ mission critical needs.