DocumentCode
73700
Title
SLM-Based Mode Division Multiplexing System With 
Sparse Equalization
Author
Kai Shi ; Feng Feng ; Gordon, George S. D. ; Wilkinson, Timothy D. ; Thomsen, Benn C.
Author_Institution
Dept. of Electron. & Electr. Eng., Univ. Coll. London, London, UK
Volume
27
Issue
16
fYear
2015
fDate
Aug.15, 15 2015
Firstpage
1687
Lastpage
1690
Abstract
We demonstrate a mode division multiplexing (MDM) system over an 8 km conventional graded index multimode fiber. Spatial light modulators (SLMs) are used to multiplex and demultiplex three linearly polarized (LP) modes (LP01, LP11a, and LP11b) in two polarizations. A 6 × 6 sparse frequency domain equalizer (FDE) is used as the channel impulse response of the SLM-based MDM system is found to be sparse due to the large crosstalk at the mode MUX/DEMUX and small coupling in the fiber. The signal transmitted on each mode is recovered with improved performance over conventional FDEs. The results indicate that this system can be used in short reach transmission applications to increase the system capacity.
Keywords
demultiplexing; equalisers; gradient index optics; multiplexing; optical communication equipment; optical crosstalk; optical fibre communication; optical fibre couplers; optical fibre polarisation; spatial light modulators; telecommunication channels; DEMUX; FDE; MDM; MUX; SLM; channel impulse response; crosstalk; distance 8 km; fiber coupling; graded index multimode fiber; linearly polarized modes; mode division multiplexing system; short reach transmission applications; sparse equalization; sparse frequency domain equalizer; spatial light modulators; system capacity; Arrays; Couplings; Crosstalk; Equalizers; MIMO; Multiplexing; Optical attenuators; Mode division multiplexing; sparse equalizer; spatial light modulator;
fLanguage
English
Journal_Title
Photonics Technology Letters, IEEE
Publisher
ieee
ISSN
1041-1135
Type
jour
DOI
10.1109/LPT.2015.2436067
Filename
7111260
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