Rescaled Multimode Fibers for Mode-Division Multiplexing

Graded-index-core multimode fibers can be appropriately rescaled in diameters and adjusted in alphas to exhibit low differential mode group delays for 15, 21, and 28 spatial modes (five-, six-, and seven-mode groups, respectively). The fibers are actually designed to support six-, seven-, and eight-mode groups but their last mode group is neglected, which reduces the impact of cladding and the sensitivity to process variability, and, thus, allows to dramatically decrease the differential mode group delays. An eight-mode-group rescaled multimode fiber is fabricated. Differential-mode-group delays <90 ps/km are obtained for the first seven mode groups (28 spatial modes), which is equivalent to those of ten-spatial-mode fibers.

[1]  Peter J. Winzer,et al.  MIMO capacities and outage probabilities in spatially multiplexed optical transport systems. , 2011, Optics express.

[2]  Pierre Sillard,et al.  50 μm Multimode Fibers for Mode Division Multiplexing , 2016, Journal of Lightwave Technology.

[3]  Haoshuo Chen,et al.  Multi-mode optical fiber amplifier supporting over 10 spatial modes , 2016, 2016 Optical Fiber Communications Conference and Exhibition (OFC).

[4]  D. Molin,et al.  50μm multimode fibers for mode division multiplexing , 2015, 2015 European Conference on Optical Communication (ECOC).

[5]  E. A. J. Marcatili,et al.  Multimode theory of graded-core fibers , 1973 .

[6]  N. Fontaine,et al.  Mode-multiplexed transmission over multimode fibers , 2016, 2016 21st OptoElectronics and Communications Conference (OECC) held jointly with 2016 International Conference on Photonics in Switching (PS).

[7]  A. M. Velazquez-Benitez,et al.  Scaling the fabrication of higher order photonic lanterns using microstructured preforms , 2015, 2015 European Conference on Optical Communication (ECOC).

[8]  D. Marcuse,et al.  Influence of curvature on the losses of doubly clad fibers. , 1982, Applied optics.

[9]  L. Gruner-Nielsen,et al.  Few mode transmission fiber with low DGD, low mode coupling and low loss , 2012, OFC/NFOEC.

[10]  Pierre Sillard,et al.  Micro-bend-Resistant Low-Differential-Mode-Group-Delay Few-Mode Fibers , 2017, Journal of Lightwave Technology.

[11]  Hugo de Waardt,et al.  MIMO equalization with adaptive step size for few-mode fiber transmission systems. , 2014, Optics express.

[12]  A. M. Velazquez-Benitez,et al.  10-Mode mode-multiplexed transmission over 125-km single-span multimode fiber , 2015, 2015 European Conference on Optical Communication (ECOC).

[13]  Masaki Wada,et al.  Few-Mode Fibers Supporting More Than Two LP Modes For Mode-Division-Multiplexed Transmission With MIMO DSP , 2014, Journal of Lightwave Technology.

[14]  R. Olshansky.  Effect of the cladding on pulse broadening in graded-index optical waveguides. , 1977, Applied optics.

[15]  P. Sillard,et al.  Few-Mode Fibers for Mode-Division-Multiplexed Systems , 2014, Journal of Lightwave Technology.

[16]  Robert Lingle,et al.  Splicing of few mode fibers , 2014, 2014 The European Conference on Optical Communication (ECOC).

[17]  Pierre Sillard,et al.  Low-Differential-Mode-Group-Delay 9-LP-Mode Fiber , 2015, Journal of Lightwave Technology.