C
Colja Schubert
Researcher at Heinrich Hertz Institute
Publications - 233
Citations - 3661
Colja Schubert is an academic researcher from Heinrich Hertz Institute. The author has contributed to research in topics: Wavelength-division multiplexing & Optical amplifier. The author has an hindex of 28, co-authored 214 publications receiving 3274 citations. Previous affiliations of Colja Schubert include Fraunhofer Society.
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Journal ArticleDOI
Terahertz Technologies to Deliver Optical Network Quality of Experience in Wireless Systems Beyond 5G
Alexandros-Apostolos A. Boulogeorgos,Angeliki Alexiou,Thomas Merkle,Colja Schubert,Robert Elschner,Alexandros Katsiotis,Panagiotis Stavrianos,Dimitrios Kritharidis,Panteleimon-Konstantinos Chartsias,Joonas Kokkoniemi,Markku Juntti,Janne Lehtomaki,Antônio Lúcio Teixeira,Francisco Rodrigues +13 more
TL;DR: The basic system architecture for THz wireless links with bandwidths of more than 50 GHz into optical networks is discussed and the role of PBF is highlighted, which is required in order to overcome the propagation losses, as well as the physical layer and medium access control challenges.
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Single channel 1.28 Tbit/s and 2.56 Tbit/s DQPSK transmission
H.G. Weber,S. Ferber,M. Kroh,Carsten Schmidt-Langhorst,Reinhold Ludwig,V. Marembert,C. Boerner,Fumio Futami,Shigeki Watanabe,Colja Schubert +9 more
TL;DR: By combining the techniques of optical TDM with polarisation multiplexing and DQPSK modulation format, 240 km transmission of 1.28 Tbit/s and 160 km transmission was performed in a single wavelength channel as mentioned in this paper.
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Ultrahigh-Speed OTDM-Transmission Technology
H.G. Weber,Reinhold Ludwig,S. Ferber,Carsten Schmidt-Langhorst,M. Kroh,V. Marembert,C. Boerner,Colja Schubert +7 more
TL;DR: In this article, a review of ultra-high-speed data transmission in optical fibers based on optical time division multiplexing (OTDM) transmission technology is presented, where optical signal processing in the transmitter and receiver as well as the requirements on ultrahigh speed data transmission over a fiber link are discussed.
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Transmission of Single-Channel 16-QAM Data Signals at Terabaud Symbol Rates
Thomas Richter,Evarist Palushani,Carsten Schmidt-Langhorst,Reinhold Ludwig,Lutz Molle,Markus Nolle,Colja Schubert +6 more
TL;DR: The latest results for OTDM transmission systems in combination with digital coherent detection achieving record-high serial data rates in a single-wavelength channel and a BER below the FEC limit is found.
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Nonlinear Digital Pre-distortion of Transmitter Components
Pablo Wilke Berenguer,Markus Nolle,Lutz Molle,Talha Raman,Antonio Napoli,Colja Schubert,Johannes Karl Fischer +6 more
TL;DR: In this article, a linear and nonlinear digital pre-distortion (DPD) tailored to the components of an optical transmitter is proposed, which uses nonlinear models of the transmitter devices which are obtained from direct component measurements.