用于空分复用传输系统的多模放大器的首次演示及详细特性描述。

First demonstration and detailed characterization of a multimode amplifier for Space Division Multiplexed transmission systems.

作者信息

Jung Y, Alam S, Li Z, Dhar A, Giles D, Giles I P, Sahu J K, Poletti F, Grüner-Nielsen L, Richardson D J

机构信息

Optoelectronics Research Centre, University of Southampton, Southampton, SO17 1BJ, UK.

出版信息

Opt Express. 2011 Dec 12;19(26):B952-7. doi: 10.1364/OE.19.00B952.

DOI:10.1364/OE.19.00B952

PMID:22274124

Abstract

We present the first demonstration of a multimode (two mode-group) erbium-doped fiber amplifier for Space Division Multiplexed (SDM) applications and demonstrate various design and performance features of such devices. In particular we experimentally demonstrate that differential modal gains can be controlled and reduced both by fiber design and control of the pump field distribution. Using a suitably designed fiber we demonstrate simultaneous modal gains of ~20 dB for different pair-wise combinations of spatial and polarization modes in an EDFA supporting amplification of 6 distinct modes.

摘要

我们展示了用于空分复用（SDM）应用的多模（两个模式组）掺铒光纤放大器的首次演示，并展示了此类器件的各种设计和性能特征。特别是，我们通过实验证明，通过光纤设计和泵浦场分布控制，可以控制和降低差分模式增益。使用适当设计的光纤，我们在支持6种不同模式放大的掺铒光纤放大器中，针对空间和偏振模式的不同成对组合，展示了约20 dB的同时模式增益。