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Updated: May 14, 2026

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
Published on: February 28, 2016
Impact of mode coupling on the mode-dependent loss tolerance in few-mode fiber transmission
Adriana Lobato1, Filipe Ferreira, Maxim Kuschnerov
1University of Federal Armed Forces Munich, Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany. adriana.lobato@unibw.de
Abstract:
Spatial-division multiplexing in the form of few-mode fibers has captured the attention of researchers since it is an attractive approach to significantly increase the channel capacity. However, the optical components employed in such systems introduce mode-dependent loss or gain (MDL) due to manufacturing imperfections, leading to significant system impairments. In this work the impact of MDL from optical amplifiers in few-mode fibers with either weak or strong mode coupling is analyzed for a 3x136-Gbit/s DP-QPSK mode-division multiplexed transmission system. It is shown that strong mode coupling reduces the impact of MDL in a similar manner as that polarization-dependent loss is reduced in single mode fibers by polarization-mode dispersion.
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