Geometric requirements for photonic lanterns in space division multiplexing.

We investigate the use of "photonic lanterns" as adiabatic mode converters for space-division multiplexing (SDM) systems to interface multiple single-mode fibers to a multi-mode fiber. In a SDM system, minimizing the coupling loss and mode-dependent loss best utilizes all spatial modes of the fiber which increases the capacity, the transmission distance, and minimizes the outage probability. We use modal analysis, the beam propagation method, and a transfer matrix technique to analyze the lanterns throughput along with its mode dependent loss and show that unitary coupling between single-mode fibers and a multi-mode fiber is only possible by optimizing the arrangements of the cores. Results include simulations for three, 12, 15, and 51 core lanterns to couple to six, 24, 30, and 102 spatial and polarization modes, respectively.

[1]  Keang-Po Ho,et al.  Statistics of Group Delays in Multimode Fiber With Strong Mode Coupling , 2011, Journal of Lightwave Technology.

[2]  D. Guckenberger,et al.  Silicon photonic integrated circuits , 2012, 2012 Conference on Lasers and Electro-Optics (CLEO).

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

[4]  P. J. Winzer,et al.  Space-division multiplexing and all-optical MIMO demultiplexing using a photonic integrated circuit , 2012, OFC/NFOEC.

[5]  J. Bland-Hawthorn,et al.  Multi-mode to single-mode conversion in a 61 port Photonic Lantern. , 2010, Optics express.

[6]  Roland Ryf,et al.  6×56-Gb/s mode-division multiplexed transmission over 33-km few-mode fiber enabled by 6×6 MIMO equalization. , 2011, Optics express.

[7]  Joss Bland-Hawthorn,et al.  Astrophotonics: a new era for astronomical instruments. , 2009, Optics express.

[8]  Bernhard Schmauss,et al.  Stable coherent MIMO transport over few mode fiber enabled by an adiabatic mode splitter , 2010, 36th European Conference and Exhibition on Optical Communication.

[9]  H. Bulow,et al.  Coherent multimode-fiber MIMO transmission with spatial constellation modulation , 2011, 2011 37th European Conference and Exhibition on Optical Communication.

[10]  A. Gnauck,et al.  Mode-Division Multiplexing Over 96 km of Few-Mode Fiber Using Coherent 6 $\,\times\,$6 MIMO Processing , 2012, Journal of Lightwave Technology.

[11]  T A Birks,et al.  Ultrafast laser inscription of an integrated photonic lantern. , 2011, Optics express.

[12]  Ronald Freund,et al.  High-Speed Transmission in Multimode Fibers , 2010, Journal of Lightwave Technology.

[13]  Timothy D. Wilkinson,et al.  Precise modal excitation in multimode fibre for control of modal dispersion and mode-group division multiplexing , 2011, 2011 37th European Conference and Exhibition on Optical Communication.

[14]  Nicolas K. Fontaine,et al.  Evaluation of photonic lanterns for lossless mode-multiplexing , 2012, 2012 38th European Conference and Exhibition on Optical Communications.

[15]  N. Fontaine,et al.  Spot-based mode coupler for mode-multiplexed transmission in few-mode fiber , 2012, 2012 IEEE Photonics Society Summer Topical Meeting Series.

[16]  S. Randel,et al.  Low-loss mode coupler for mode-multiplexed transmission in few-mode fiber , 2012, OFC/NFOEC.

[17]  J. Cruz,et al.  "Photonic lantern" spectral filters in multi-core Fiber. , 2012, Optics express.

[18]  Andrew Chralyvy,et al.  Plenary paper: The coming capacity crunch , 2009, 2009 35th European Conference on Optical Communication.

[19]  Alexander Argyros,et al.  Photonic lanterns: a study of light propagation in multimode to single-mode converters. , 2010, Optics express.

[20]  H. Bulow,et al.  Optical-Mode Demultiplexing by Optical MIMO Filtering of Spatial Samples , 2012, IEEE Photonics Technology Letters.

[21]  Nemanja Jovanovic,et al.  Integrated photonic building blocks for next-generation astronomical instrumentation I: the multimode waveguide , 2012 .