Mode demultiplexer using angularly multiplexed volume holograms

被引：29
作者：
Wakayama, Yuta [1 ]
Okamoto, Atsushi [1 ]
Kawabata, Kento [1 ]
Tomita, Akihisa [1 ]
Sato, Kunihiro [2 ]
机构：
[1] Hokkaido Univ, Grad Sch Informat Sci & Technol, Sapporo, Hokkaido 0640814, Japan
[2] Hokkai Gakuen Univ, Fac Engn, Sapporo, Hokkaido 0640926, Japan
来源：
OPTICS EXPRESS | 2013年 / 21卷 / 10期
关键词：
MULTIMODE FIBERS; OPTICAL FIBERS; TRANSMISSION; STORAGE; EXCITATION;
D O I：
10.1364/OE.21.012920
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This study proposes a volume holographic demultiplexer (VHDM) for extracting the spatial modes excited in a multimode fiber. A unique feature of the demultiplexer is that it can separate a number of multiplexed modes output from a fiber in different directions by using multi-recorded holograms without beam splitters, which results in a simple configuration as compared with that using phase plates instead of holograms. In this study, an experiment is conducted to demonstrate the basic operations for three LP mode groups to confirm the performance of the proposed VHDM and to estimate the signal-to-crosstalk noise ratio (SNR). As a result, an SNR of greater than 20 dB is obtained. (C) 2013 Optical Society of America
引用
收藏
页码：12920 / 12933
页数：14
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