Mode group multiplexing over graded-index multimode fiber
Mode group multiplexing over graded-index multimode fiber
复制标题
渐变折射率多模光纤上的模式组复用
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
H. Bulow
中科院分区：
文献类型：
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作者：
B. Franz;H. Bulow
多模光纤(MMF)的数据传输通过利用空间维度极大地提高了单模光纤(SMF)的容量极限。采用标准的渐变折射率多模光纤(GI-MMF)与OOK调制和直接检测相结合的空间复用对于短距离传输系统可能是有利的。主模组的应用提供了消除多输入多输出(MIMO)处理的需要的可能性，尤其是在支持大量模式的光纤用于传输的情况下。以2公里长的OM4渐变折射率多模光纤数据传输为例，对主模群作为独立传输信道的空间多路复用进行了实验研究。8个主模组被确定为适合在1550 nm波长下传输10Gbit/S数据的空间分离的传输信道。
Data transmission over multi-mode fibers (MMF) has the potential to increase considerably the capacity limit of singlemode fibers (SMF) by exploiting the spatial dimension. Spatial multiplex using standard graded-index multimode fibers (GI-MMF) in combination with OOK modulation and direct detection might be advantageous for short haul transmission systems. The application of principal mode groups provides the possibility to eliminate the need for multiple-input multiple-output (MIMO) processing, especially if a fiber supporting a large number of modes is used for the transmission. Spatial multiplex using principal mode groups as individual transmission channels has been experimentally investigated at the example of a data transmission over a 2 km long OM4 graded-index multi-mode fiber. Eight principal mode groups have been identified being suitable as spatially separated transmission channels for 10 Gbit/s data at a wavelength of 1550 nm.