Modal decomposition technique for multimode fibers

被引:52
|
作者
Duc Minh Nguyen [1 ]
Blin, Stephane [2 ]
Thanh Nam Nguyen [1 ]
Le, Sy Dat [1 ]
Provino, Laurent [3 ]
Thual, Monique [1 ]
Chartier, Thierry [1 ]
机构
[1] Univ Europeenne Bretagne, France CNRS Foton UMR6082, F-22300 Lannion, France
[2] Univ Montpellier 2, Inst Elect Sud, UMR CNRS 5214, F-34095 Montpellier 5, France
[3] Perfos, F-22300 Lannion, France
关键词
AREA FIBERS;
D O I
10.1364/AO.51.000450
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We propose a new solution for modal decomposition in multimode fibers, based on a spectral and spatial imaging technique. The appearance of spurious modes in the spectral and spatial processing of the images at the output of the fiber under test when it has more than two modes is demonstrated theoretically. The new method, which allows us to identify spurious modes, is more accurate, simpler, and faster than previously reported methods. For demonstration, measurements in a standard step-index multimode fiber and a small-core microstructured fiber are carried out successfully. (C) 2012 Optical Society of America
引用
收藏
页码:450 / 456
页数:7
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