Abstract
In this paper, spatial light modulation is proposed to increase the
transmission capacity of graded-index multimode fibers. In the method, selected
linearly polarized eigenmodes of the fiber are excited using simple binary-phase
spatial filters. Numerical results indicate that the selectivity of the method
is very high, also for fibers with perturbed profiles. The excess attenuation
of the method is very low. In the experiment, a threefold increase of fiber
bandwidth for several filters is obtained.
© 2011 IEEE
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