Reach Improvement of Mode Division Multiplexed Systems using Fiber Splices
Ferreira, F. M.
; Fonseca, D.
; Lobato, A.
; Inan, B.
; Silva, H. A.
IEEE Photonics Technology Letters Vol. 25, Nº 12, pp. 1091 - 1094, June, 2013.
ISSN (print): 1041-1135
ISSN (online): 1941-0174
Scimago Journal Ranking: 1,50 (in 2013)
Digital Object Identifier: 10.1109/LPT.2013.2256120
Abstract
This letter proposes the introduction of discrete modal crosstalk (XT) through fiber splices for the improvement of the distance reach of mode division multiplexed (MDM) transmission systems over few mode fibers (FMFs). The proposed method increases the distance reach reducing the time spread of the FMFs impulse response. The method effectiveness is assessed through simulation considering 3 × 136 Gbit/s MDM-CP-QPSK ultra long haul transmission systems employing inherently low differential mode delay (DMD) FMFs or DMD compensated FMFs. A maximum reach increase factor of 1.9 is obtained for the optimum number of splices per span and optimum splice XT level.
