G
Grzegorz Stepniak
Researcher at Warsaw University of Technology
Publications - 76
Citations - 831
Grzegorz Stepniak is an academic researcher from Warsaw University of Technology. The author has contributed to research in topics: Multi-mode optical fiber & Multiplexing. The author has an hindex of 14, co-authored 71 publications receiving 678 citations. Previous affiliations of Grzegorz Stepniak include University of Warsaw.
Papers
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Compensation of a VLC Phosphorescent White LED Nonlinearity by Means of Volterra DFE
TL;DR: In this article, a visible light communication link is analyzed that employs a white phosphorescent light emitting diode (LED) as transmitter and a p-i-n photodiode combined with optical filter as receiver.
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54 Gbit/s OOK transmission using single-mode VCSEL up to 2.2 km MMF
Grzegorz Stepniak,Arkadiusz Lewandowski,J.-R. Kropp,N. N. Ledentsov,V. A. Shchukin,Nikolay Ledentsov,G. Schaefer,M. Agustin,Jaroslaw P. Turkiewicz +8 more
TL;DR: In this article, the advantages of the single mode over multimode vertical cavity surface emitting laser (VCSEL) in transmission experiments have been shown, and a successful 54 Gbit/s on-off keying (OOK) transmission over 2.2 km of multimode OM4 fiber is demonstrated.
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Advanced Modulation Formats in Phosphorous LED VLC Links and the Impact of Blue Filtering
TL;DR: The results indicate that blue filtering has a marginal effect on the performance for all the investigated modulation formats, while PAM with decision feedback equalizer shows the best performance.
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Anti-waveguiding vertical-cavity surface-emitting laser at 850 nm: From concept to advances in high-speed data transmission.
Nikolay N. Ledentsov,V. A. Shchukin,Vladimir Kalosha,J.-R. Kropp,M. Agustin,Łukasz Chorchos,Grzegorz Stepniak,Jaroslaw P. Turkiewicz,Jin-Wei Shi +8 more
TL;DR: The approach to single-mode anti-waveguiding VCSELs is extended over a broad spectral range realizing error-free high-speed data transmission at both 850 nm and 910 nm.
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Binary-Phase Spatial Light Filters for Mode-Selective Excitation of Multimode Fibers
TL;DR: In this paper, spatial light modulation is proposed to increase the transmission capacity of graded-index multimode fibers, where selected linearly polarized eigenmodes of the fiber are excited using simple binary-phase spatial filters.