Title :
Binary-Phase Spatial Light Filters for Mode-Selective Excitation of Multimode Fibers
Author :
Stepniak, Grzegorz ; Maksymiuk, Lukasz ; Siuzdak, Jerzy
Author_Institution :
Inst. of Telecommun., Warsaw Univ. of Technol., Warsaw, Poland
fDate :
7/1/2011 12:00:00 AM
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.
Keywords :
gradient index optics; optical fibre dispersion; optical fibre polarisation; optical filters; spatial filters; spatial light modulators; binary-phase spatial light filters; excess attenuation; fiber bandwidth; graded-index multimode fibers; linearly polarized eigenmodes; mode-selective excitation; spatial light modulation; transmission capacity; Apertures; Approximation methods; Bandwidth; Dispersion; Frequency response; Modulation; Strontium; Multimode fiber (MMF); binary-phase filters; mode-selective excitation; spatial light modulation (SLM); transmission capacity;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2011.2155621
