Karsten Rottwitt

Karsten Rottwitt

Professor, Group Leader

DTU FOTONIK
Department of Photonics Engineering

Fiber Optics, Devices and Non-linear Effects

Technical University of Denmark

Ørsteds Plads

Building 343, room 130

2800 Kgs. Lyngby

Ph.
Mobile
Fax +45 45 93 65 81
E-mail karo@fotonik.dtu.dk

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2019
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Experimental demonstration of the DPTS QKD protocol over a 170 km fiber link

da Lio, Beatrice ; Bacco, Davide ; Cozzolino, Daniele ; Ding, Y. ; Dalgaard, K. ; Rottwitt, Karsten ; Oxenløwe, Leif Katsuo
in: Applied Physics Letters, vol: 114, issue: 1

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2019     |    DOI: https://doi.org/10.1063/1.5049659

2018
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Photon-pair sources based on intermodal four-wave mixing in few-mode fibers

Rottwitt, Karsten ; Koefoed, Jacob Gade ; Christensen, Erik Nicolai
in: Fibers, vol: 6, issue: 2

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.3390/fib6020032

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Experimentally validated dispersion tailoring in a silicon strip waveguide with alumina thin-film coating

Guo, Kai ; Christensen, Jesper Bjerge ; Shi, Xiaodong ; Christensen, Erik Nicolai ; Lin, Li ; Ding, Yunhong ; Ou, Haiyan ; Rottwitt, Karsten
in: IEEE Photonics Journal, vol: 10, issue: 2

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1109/JPHOT.2018.2802931

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12 mode, WDM, MIMO-free orbital angular momentum transmission

Ingerslev, Kasper ; Gregg, Patrick ; Galili, Michael ; Da Ros, Francesco ; Hu, Hao ; Bao, Fangdi ; Usuga Castaneda, Mario A. ; Kristensen, Poul ; Rubano, Andrea ; Marrucci, Lorenzo ; Rottwitt, Karsten ; Morioka, Toshio ; Ramachandran, Siddharth ; Oxenløwe, Leif Katsuo
in: Optics Express, vol: 26, issue: 16, pages: 20225-232

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1364/OE.26.020225

 

Analytic description of four-wave mixing in silicon-on-insulator waveguides

Friis, Søren Michael Mørk ; Koefoed, Jacob Gade ; Guo, Kai ; Rottwitt, Karsten
in: Optical Society of America. Journal B: Optical Physics, vol: 35, issue: 4, pages: 702-710

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1364/JOSAB.35.000702

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A Novel Fabrication Method for Photonic Lanterns

Mariam Mathew, Neethu ; Grüner-Nielsen, Lars Erik ; Usuga Castaneda, Mario A. ; Rottwitt, Karsten
part of: Optical Fiber Communication Conference 2018, pages: 1-3, 2018, Optical Society of America OSA
Presented at:
Optical Fiber Communication Conference and Exhibition 2018

Type: Article in proceedings (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1364/OFC.2018.M4D.4

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Engineering spectrally unentangled photon pairs from nonlinear microring resonators by pump manipulation

Christensen, Jesper Bjerge ; Koefoed, Jacob Gade ; Rottwitt, Karsten ; McKinstrie, C. J.
in: Optics Letters, vol: 43, issue: 4, pages: 859-862

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1364/OL.43.000859

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Entanglement swapping for generation of heralded time-frequency-entangled photon pairs

Vitullo, Dashiell L. P. ; Raymer, M. G. ; Smith, B. J. ; Karpinski, Michal ; Mejling, L. ; Rottwitt, Karsten
in: Physical Review A (Atomic, Molecular and Optical Physics), vol: 98, issue: 2

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1103/PhysRevA.98.023836

 

Feasibility of Quantum Communications in Aquatic Scenario

Tarantino, Silvia ; Cozzolino, Daniele ; Rottwitt, Karsten ; Bacco, Davide
part of: Proceedings of 2018 IEEE Photonics Conference, pages: 2 pp., 2018, IEEE
Presented at:
31st Annual Conference of the IEEE Photonics Society

Type: Article in proceedings (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1109/IPCon.2018.8527325

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Fiber mode excitation using phase-only spatial light modulation: Guideline on free-space path design and lossless optimization

Astorino, Antonio ; Glückstad, Jesper ; Rottwitt, Karsten
in: A I P Advances, vol: 8, issue: 9

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1063/1.5044628