Few-mode multicore fibers for long-haul transmission line

Abstract Few-mode multicore fibers (FM-MCFs) that enable dense space-division multiplexing (DSDM) have the potential to drastically improve the fiber capacity. In designing the FM-MCFs, several issues that originate from multicore fibers and few-mode fibers must be considered. In this paper, these design issues such as inter-core crosstalk (IC-XT) and dispersion mode delay (DMD) are discussed. A three-mode 12-core fiber with low-DMD low-IC-XT achieves long-haul DSDM transmission over 500 km. The design concept, fiber design, and characteristics of the fabricated three-mode 12-core fiber are also described.

[1]  D. J. Richardson,et al.  32-core Dense SDM unidirectional transmission of PDM-16QAM signals over 1600 km using crosstalk-managed single-mode heterogeneous multicore transmission line , 2016, 2016 Optical Fiber Communications Conference and Exhibition (OFC).

[2]  R. Sugizaki,et al.  7-core 2-mode fibers with large Aeff to simultaneously realize “3M” , 2012, 2012 17th Opto-Electronics and Communications Conference.

[3]  M. Bigot-Astruc,et al.  Multimode fibers for mode division multiplexing , 2017, 2017 Conference on Lasers and Electro-Optics (CLEO).

[4]  K. Takenaga,et al.  Large Effective-Area Few-Mode Multicore Fiber , 2012, IEEE Photonics Technology Letters.

[5]  Kunimasa Saitoh,et al.  Multi-core fiber design and analysis , 2011, 2011 37th European Conference and Exhibition on Optical Communication.

[6]  Toshio Morioka,et al.  High-Spatial-Multiplicity Multicore Fibers for Future Dense Space-Division-Multiplexing Systems , 2016, Journal of Lightwave Technology.

[7]  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).

[8]  Masaki Wada,et al.  Moderately coupled 125-μm cladding 2 LP-mode 6-core fiber for realizing low MIMO-DSP and high spatial density , 2014, 2014 The European Conference on Optical Communication (ECOC).

[9]  Toshio Morioka,et al.  High-count multi-core fibers for space-division multiplexing with propagation-direction interleaving , 2015, 2015 Optical Fiber Communications Conference and Exhibition (OFC).

[10]  Taiji Sakamoto,et al.  Differential Mode Delay Managed Transmission Line for WDM-MIMO System Using Multi-Step Index Fiber , 2012, Journal of Lightwave Technology.

[11]  T. Sasaki,et al.  Characterization of Crosstalk in Ultra-Low-Crosstalk Multi-Core Fiber , 2012, Journal of Lightwave Technology.

[12]  M. Koshiba,et al.  Trench-assisted low-crosstalk few-mode multicore fiber , 2013 .

[13]  I. Morita,et al.  2.05 Peta-bit/s super-nyquist-WDM SDM transmission using 9.8-km 6-mode 19-core fiber in full C band , 2015, 2015 European Conference on Optical Communication (ECOC).

[14]  Kunimasa Saitoh,et al.  Multicore Fiber Technology , 2015, Journal of Lightwave Technology.

[15]  Ryuichi Sugizaki,et al.  Multi-core few-mode optical fibers with large Aeff , 2014 .

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

[17]  Guifang Li,et al.  Hole-Assisted Few-Mode Multicore Fiber for High-Density Space-Division Multiplexing , 2012, IEEE Photonics Technology Letters.

[18]  Takayuki Kobayashi,et al.  2 × 344 Tb/s propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation , 2013 .

[19]  Lionel Provost,et al.  Few-mode fiber for uncoupled mode-division multiplexing transmissions , 2011, 2011 37th European Conference and Exhibition on Optical Communication.

[20]  F. Huijskens,et al.  16QAM SDM-WDM Transmission over a Novel Hole-Assisted Few-Mode Multi-Core Fiber , 2014, 2014 IEEE Photonics Society Summer Topical Meeting Series.

[21]  T. Sakamoto,et al.  Six-LP-mode transmission fiber with DMD of less than 70 ps/km over C+L band , 2014, OFC 2014.

[22]  Yusuke Sasaki,et al.  Few-mode multicore fibre with 36 spatial modes (Three modes (LP01, LP11a, LP11b) ×12 cores) , 2014, 2014 The European Conference on Optical Communication (ECOC).

[23]  K. Takenaga,et al.  Reduction of crosstalk by trench-assisted multi-core fiber , 2011, 2011 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference.

[24]  K. Saitoh,et al.  12-core fiber with one ring structure for extremely large capacity transmission. , 2012, Optics express.

[25]  Takehiro Tsuritani,et al.  1.03-Exabit/s.km Super-Nyquist-WDM Transmission over 7,326-km Seven-Core Fiber , 2013 .

[26]  Takehiro Tsuritani,et al.  114 space-division-multiplexed transmission over 9.8-km weakly-coupled-6-mode uncoupled-19-core fibers , 2015, 2015 Optical Fiber Communications Conference and Exhibition (OFC).

[27]  B. Puttnam,et al.  Large Spatial Channel (36-Core × 3 mode) Heterogeneous Few-Mode Multicore Fiber , 2016, Journal of Lightwave Technology.

[28]  K. Takenaga.  Multicore fiber with dual-ring structure , 2014, 2014 OptoElectronics and Communication Conference and Australian Conference on Optical Fibre Technology.

[29]  N. Wada,et al.  Realizing a 36-core, 3-mode fiber with 108 spatial channels , 2015, 2015 Optical Fiber Communications Conference and Exhibition (OFC).

[30]  Katsuhiro Takenaga,et al.  Low-crosstalk multicore fibers for long-haul transmission , 2012, OPTO.

[31]  M. Koshiba,et al.  Large-effective-area uncoupled few-mode multi-core fiber , 2012, 2012 38th European Conference and Exhibition on Optical Communications.

[32]  Toshio Morioka,et al.  12-core × 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization , 2014, OFC 2014.

[33]  N. Wada,et al.  2.15 Pb/s transmission using a 22 core homogeneous single-mode multi-core fiber and wideband optical comb , 2015, 2015 European Conference on Optical Communication (ECOC).

[34]  Taiji Sakamoto,et al.  Crosstalk suppressed hole-assisted 6-core fiber with cladding diameter of 125 μm , 2013 .

[35]  Taiji Sakamoto,et al.  Few-mode multi-core fibre with highest core multiplicity factor , 2015, 2015 European Conference on Optical Communication (ECOC).

[36]  Kunimasa Saitoh,et al.  Full-vectorial imaginary-distance beam propagation method based on a finite element scheme: application to photonic crystal fibers , 2002 .

[37]  Takehiro Tsuritani,et al.  6-Mode 19-core fiber for weakly-coupled mode-multiplexed transmission over uncoupled cores , 2016, 2016 Optical Fiber Communications Conference and Exhibition (OFC).

[38]  T. Mizuno,et al.  Low-loss and Low-DMD few-mode multi-core fiber with highest core multiplicity factor , 2016, 2016 Optical Fiber Communications Conference and Exhibition (OFC).

[39]  E.B. Desurvire,et al.  Capacity Demand and Technology Challenges for Lightwave Systems in the Next Two Decades , 2006, Journal of Lightwave Technology.

[40]  E. Ip,et al.  105Pb/s Transmission with 109b/s/Hz Spectral Efficiency using Hybrid Single- and Few-Mode Cores , 2012 .

[41]  Toshio Morioka,et al.  1.01-Pb/s (12 SDM/222 WDM/456 Gb/s) Crosstalk-managed Transmission with 91.4-b/s/Hz Aggregate Spectral Efficiency , 2012 .

[42]  K. Takenaga,et al.  A large effective area few-mode multi-core fiber , 2012, 2012 IEEE Photonics Society Summer Topical Meeting Series.

[43]  K. Takenaga,et al.  Possibility of stack and draw process as fabrication technology for multi-core fiber , 2013, 2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC).

[44]  M. Koshiba,et al.  Few-Mode Multicore Fiber With 36 Spatial Modes (Three Modes (LP$_{\bf 01}$ , LP$_{\bf 11a}$, LP $_{\bf 11b}$) × 12 Cores) , 2015, Journal of Lightwave Technology.