World's Best Scientists 2026 revealed!

D-Index & Metrics

Electronics and Electrical Engineering

D-Index
44
Citations
5742
World Ranking
3786
National Ranking
110

Overview

R. Ludwig is affiliated with the Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute in Germany. The scientist's work is associated with this institute, which is known for research in telecommunications and related technologies.

There are no records of recent papers, frequent co-authors, book publications, main or subfields of study, main topics of work, publication venues, or awards available for R. Ludwig at this time. Therefore, details about specific research contributions or collaborations are not provided.

This profile reflects the available factual data about R. Ludwig, focusing on institutional association without speculative interpretation or missing details.

Best Publications

  • Four-wave mixing in semiconductor optical amplifiers for frequency conversion and fast optical switching

    S. Diez;C. Schmidt;R. Ludwig;H.G. Weber

  • Single channel 1.28 Tbit/s and 2.56 Tbit/s DQPSK transmission

    H.G. Weber;S. Ferber;M. Kroh;C. Schmidt-Langhorst

  • Fiber loop optical buffer

    R. Langenhorst;M. Eiselt;W. Pieper;G. Grosskopf

  • Ultrahigh-Speed OTDM-Transmission Technology

    H.-G. Weber;R. Ludwig;S. Ferber;C. Schmidt-Langhorst

  • Polarization insensitive frequency conversion of a 10-channel OFDM signal using four-wave-mixing in a semiconductor laser amplifier

    R. Schnabel;U. Hilbk;T. Hermes;P. Meissner

  • Gain-transparent SOA-switch for high-bitrate OTDM add/drop multiplexing

    S. Diez;R. Ludwig;H.G. Weber

  • 140 Mbit/s DPSK transmission using an all-optical frequency convertor with a 4000 GHz conversion range

    G. Grosskopf;R. Ludwig;H.G. Weber

  • Transmission of Single-Channel 16-QAM Data Signals at Terabaud Symbol Rates

    T. Richter;E. Palushani;C. Schmidt-Langhorst;R. Ludwig

  • All-optical clock recovery module based on self-pulsating DFB laser

    B. Sartorius;C. Bornholdt;O. Brox;H.J. Ehrke

  • 160 Gbit/s clock recovery with electro-optical PLL using bidirectionally operated electroabsorption modulator as phase comparator

    C. Boerner;C. Schubert;C. Schmidt;E. Hilliger

  • BER measurements of frequency converted signals using four-wave mixing in a semiconductor laser amplifier at 1, 2.5, 5 and 10 Gbit/s

    R. Ludwig;G. Raybon

  • Comparison of interferometric all-optical switches for demultiplexing applications in high-speed OTDM systems

    C. Schubert;J. Berger;S. Diez;H.J. Ehrke

  • Single wavelength channel 10.2 Tb/s TDM-data capacity using 16-QAM and coherent detection

    T. Richter;E. Palushani;C. Schmidt-Langhorst;M. Nolle

  • Turn-key-ready wavelength-, repetition rate- and pulsewidth-tunable femtosecond hybrid modelocked semiconductor laser

    R. Ludwig;A. Ehrhardt

  • 160-Gb/s all-optical demultiplexing using a gain-transparent ultrafast-nonlinear interferometer (GT-UNI)

    C. Schubert;S. Diez;J. Berger;R. Ludwig

  • 160 Gbit/s transmission over 116 km field-installed fibre using 160 Gbit/s OTDM and 40 Gbit/s ETDM

    U. Feiste;R. Ludwig;C. Schubert;J. Berger

  • 160 Gbit/s optical 3R-regenerator in a fiber transmission experiment

    S. Watanabe;F. Futami;R. Okabe;Y. Takita

  • 160-Gb/s optical sampling by gain-transparent four-wave mixing in a semiconductor optical amplifier

    S. Diez;R. Ludwig;C. Schmidt;U. Feiste

  • Nonlinearity-insensitive standard-fibre transmission based on optical-phase conjugation in a semiconductor-laser amplifier

    W. Pieper;C. Kurtzke;R. Schnabel;D. Breuer

  • All-optical switch for TDM and WDM/TDM systems demonstrated in a 640 Gbit/s demultiplexing experiment

    S. Diez;R. Ludwig;H.G. Weber

Frequent Co-Authors

Hans-Georg Weber
Hans-Georg Weber Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute
Klaus Petermann
Klaus Petermann Technical University of Berlin
Hao Hu
Hao Hu Technical University of Denmark
Bernhard Schmauss
Bernhard Schmauss University of Erlangen-Nuremberg
Michael Eiselt
Michael Eiselt ADVA Optical Networking (Germany)
Andreas Beling
Andreas Beling University of Virginia
Fred Buchali
Fred Buchali Nokia (United States)
Lars Zimmermann
Lars Zimmermann Technical University of Berlin
Leif Katsuo Oxenløwe
Leif Katsuo Oxenløwe Technical University of Denmark
G. Raybon
G. Raybon Nokia (United States)

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