DOFI has world leading expertise within few mode fibers and is started with the goal to bring few mode fiber technologies from current research state into actual commercial use.
The activities are mainly focused on mode converters based on photonic lanterns and long period gratings.
In 2018 DOFI joined the INCOM research collaboration on Innovative Solutions for Next Generation Communications Infrastructure funded by Innovation Fund Denmark. The DOFI part will focus on development of few mode technologies for future intra datacenter communication.
DOFI has a close collaboration with DTU Fotonik, including the
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Downloadable documents.
List of publications 2017
F. Parmigiani, Y. Jung, P. Horak, L. Grüner-Nielsen, T. Geisler, P. Petropoulos, D. Richardson; C- to L- band Wavelength Conversion Enabled by Parametric Processes in a Few Mode Fiber; Proceedings of OFC, paper, Th1F.4; 2017
M. Lillieholm, P. Guan, M. S. Møller-Kristensen, M. Galili, L. Grüner-Nielsen, and L. K. Oxenløwe; Continuous-Wave-based Characterization of Nonlinear Fibers for Four-Wave Mixing using Chirped Pump Pulses; Proceedings of CLEO, paper STh4K.4; 2017
F. Parmigiani, Y. Jung, L. Grüner-Nielsen, T. Geisler, P. Petropoulos, D. Richardson; MIMO-less Space Division Multiplexing Transmission over 1 km Elliptical Core Few Mode Fiber; Upgraded Invited; Proceedings of CLEO, paper SW1I.1; 2017
M. Lillieholm, P. Guan, M. Galili, M. S. Møller-Kristensen, L. Grüner-Nielsen, And L. K. Oxenløwe; Optimization and characterization of highly nonlinear fiber for broadband optical time lens applications; Optics Express, Vol. 25, No. 11, pp. 12566-12580 ; 2017
Alma Fernandez, Marco Andreana, Lars Grüner-Nielsen, Thomas Andersen, Martin Distel,
Lingxiao Zhu, Andrius Baltuska, Rainer Leitgeb, Kim Jespersen, and Aart Verhoef; Optimizing the Fluorescent Signal for In-Vivo Nonlinear Imaging in a Completely
All-Fibered Ytterbium Chirped Pulse Amplifier; Proceedings of CLEO Europe, paper JS ECBO/CLEO.2; 2017
A. Fernández, L. Grüner-Nielsen, M. Distel, T. Andersen, M. Andreana, M. Stadler, S. Kirchberger, C. Sturtzel, L. Zhu, W. Kautek, R. Leitgeb, A. Baltuska, K. Jespersen, A. Verhoef; Optimizing pulse compressibility in completely all-fibered ytterbium chirped pulse amplifiers for in vivo two photon laser scanning microscopy; Biomedical Optics Express, Vol. 8, No. 8, pp. 3526-3537; 2017
Lars Grüner-Nielsen, and Søren Herstrøm; Brillouin Gain Spectra of Few Mode Fibres; Proceedings of ECOC, Paper P1.SC1.1; 2017
M. Lillieholm, B. Corcoran, M. Galili, L. Grüner-Nielsen, L. K. Oxenløwe and A. J. Lowery; Characterization of Advanced Modulation Formats for Spectral Magnification based on Four-Wave Mixing in Nonlinear Fibre; Proceedings of ECOC, Paper P1.SC4.65; 2017
F. Parmigiani, M. Guasoni, O. Anjum, P. Horak, Y. Jung, L. Grüner-Nielsen, P. Petropoulos, D. J. Richardson; Polarization Insensitive Wavelength Conversion in a Few Mode Fibre; Proceedings of ECOC, Paper W.2.F.2; 2017
F. Parmigiani, Y. Jung, L. Grüner-Nielsen, T. Geisler, P. Petropoulos, D. J. Richardson; Elliptical Core Few Mode Fibers for Multiple-Input Multiple Output-free Space Division Multiplexing Transmission; Photonics Technology Letters, Vol. 29, No. 21, pp. 1764-1767; 2017
F. Parmigiani, P. Horak, Y. Jung, L. Grüner-Nielsen, T. Geisler, P. Petropoulos, D. J. Richardson; Flexible All-Optical Mode and Wavelength Converter based on Parametric Processes in a Three-Mode Fiber; Optics Express, Vol. 25, No. 26, pp. ;2017
List of publications 2018
Mikko Karppinen, Antti Tanskanen, Jyrki Ollila, Johan Gustavsson, Anders Larsson, Minsu Ko, Dietmar Kissinger, Lars Grüner-Nielsen, Christian Larsen, Rashid Safaisini, Anaelle Maho, Michel Sotom, Leontios Stampoulidis; Multichannel VCSEL-based optical transceiver employing multicore fibers at 6x25 Gbps/fiber; Photonic West, paper 10538-11; 2018
Neethu Mariam Mathew, Lars Grüner-Nielsen, Mario A Usuga Castaneda, Karsten Rottwitt; A Novel Fabrication Method for Photonic Lanterns; Proceedings of OFC, paper M4D.4; 2018
John van Weerdenburg, Roland Ryf, Juan Carlos Alvarado-Zacarias, Roberto A. Alvarez-Aguirre, Nicolas K. Fontaine, Haoshuo Chen, Rodrigo Amezcua-Correa, Yi Sun, Lars Grüner-Nielsen, Rasmus V. Jensen, Robert Lingle, Jr., Ton Koonen, and Chigo Okonkwo; 138 Tbit/s Mode- and Wavelength Multiplexed Transmission over 6-Mode Graded-Index Fiber; Journal of Ligthwave Technology; Vol. 36, No. 6, pp. 1369; 2018
Neethu M. Mathew, Erik N. Christensen, Lars Grüner-Nielsen, and Karsten Rottwitt; Improved SBS limited parametric conversion by use of few-mode fibers; Proceedings of ECOC, Paper We2.1; 2018
Neethu M. Mathew, Lars Grüner-Nielsen, Mario A. U. Castaneda, Michael Galili, and Karsten Rottwitt; Mode-Group Selective Air-Clad Photonic Lantern; Proceedings of Frontiers in Optics, Paper FTu5B; 2018
L. Stampoulidisa, E. Kehayasa, M. Karppinenb, A. Tanskanenb, J. Ollilab, J. Gustavssonc, A. Larssonc, L. Grϋner-Nielsend, Christian Larsend, M. Sotome, Anaelle Mahoe, Mickael Faugerone, N. Venete, M. Kof, P. Ostrovskyyf, D. Kissingerf, R. Safaisinig, R. Kingg, I. McKenzieh, J. B. Gonzalezi; High-speed, low-power and board-mountable optical transceivers for scalable & energy efficient advanced on‐board digital processors, Proceedings of ISCO 2018
List of publications 2019
Lars Grüner-Nielsen, Neethu Mariam Mathew, and Karsten Rottwitt; Direct Measurement of Polarization Dependency of Mode Conversion in a Long Period Grating; Proceedings of OFC, paper Th2A.15.4; 2019
Neethu Mariam Mathew, Lars Grüner-Nielsen, Michael Galili, Mads Lillieholm, Mario A. Usuga Castaneda, Karsten Rottwitt; Polarization Dependence of Mode-Group Selective Air-Clad Photonic Lantern; Proceedings of OFC, paper Th3D.6; 2019
Neethu Mariam Mathew, Jesper Bjerge Christensen, Lars Grüner-Nielsen, Michael Galili, Karsten Rottwitt; Air-cladded mode-group selective photonic lanterns for mode-division multiplexing; Optics Express, Vol. 27, No. 9. pp. 13329-13343; 2019
Lars Grüner-Nielsen, Neethu Mariam Mathew, and Karsten Rottwitt; Characterization of Few Mode Fibers and Devices; Invited Paper; Optical Fiber Technology; Vol. 52; 2019