World's Best Scientists 2026 revealed!

D-Index & Metrics

Engineering and Technology

D-Index
46
Citations
10074
World Ranking
5083
National Ranking
1445

Research.com Recognitions

  • 2013 - IEEE Alexander Graham Bell Medal “For contributions to the science and technology of optical communications enabling high-speed wavelength division multiplexing through the mitigation of the effects of fiber nonlinearity.”
  • 2009 - Member of the National Academy of Engineering For contributions to research and development of terabit/second optical-fiber communication systems and networks.
  • 2000 - IEEE Fellow For contributions to the understanding and mitigation of nonlinear effects in optical fibers, enabling significant advances in the capacity and performance of lightwave systems.

Overview

R.W. Tkach is affiliated with Nokia in the United States, contributing extensively to the field of engineering, particularly in electrical and electronic engineering. Their research spans advanced topics in optical network technologies, photonic communication systems, and fiber laser technologies, focusing on the interaction of lightwaves with optical fibers and communication systems.

The scientist's work covers various subfields and topics including:

  • Optical Network Technologies
  • Advanced Photonic Communication Systems
  • Advanced Fiber Laser Technologies
  • Photonic and Optical Devices
  • Advanced Fiber Optic Sensors
  • Advanced Optical Network Technologies

Tkach's recent publications highlight ongoing research in optical fiber communication. Notable papers include:

  • "Shaping lightwaves in time and frequency for optical fiber communication," 2022, Nature Communications
  • "On the Kurtosis of Modulation Formats for Characterizing the Nonlinear Fiber Propagation," 2022, Journal of Lightwave Technology
  • "Shaping Lightwaves in Time and Frequency for Optical Fiber Communication," 2021, Research Square
  • "Full C-Band WDM Transmission of Nonlinearity-Tolerant Probabilistically Shaped QAM over 2824-km Dispersion-Managed Fiber," 2020, arXiv (Cornell University)
  • "On the Kurtosis of Modulation Formats for Characterizing the Nonlinear Fiber Propagation," 2021, arXiv (Cornell University)

The main publication venues for their work include:

  • arXiv (Cornell University)
  • Nature Communications
  • Journal of Lightwave Technology
  • Research Square

Frequent co-authors collaborating with Tkach are:

  • Junho Cho
  • G. Raybon
  • Di Che
  • Ellsworth Burrows
  • Xi Chen

In recognition of their professional achievements, R.W. Tkach has received several honors including:

  • IEEE Alexander Graham Bell Medal (2013) for contributions to optical communications and mitigation of fiber nonlinearity effects
  • Member of the National Academy of Engineering (2009) for research in terabit/second optical-fiber communication systems and networks
  • IEEE Fellow (2000) for work on nonlinear effects in optical fibers and advances in lightwave system capacity and performance

Best Publications

  • Capacity Trends and Limits of Optical Communication Networks

    R. Essiambre;R. W. Tkach

  • Regimes of feedback effects in 1.5-µm distributed feedback lasers

    Unknown

  • Four-photon mixing and high-speed WDM systems

    R.W. Tkach;A.R. Chraplyvy;F. Forghieri;A.H. Gnauck

  • Issues for routing in the optical layer

    Unknown

  • Phase-conjugated twin waves for communication beyond the Kerr nonlinearity limit

    Xiang Liu;A. R. Chraplyvy;P. J. Winzer;R. W. Tkach

  • Free-space micromachined optical switches for optical networking

    L.Y. Lin;E.L. Goldstein;R.W. Tkach

  • Fading in lightwave systems due to polarization-mode dispersion

    C.D. Poole;R.W. Tkach;A.R. Chraplyvy;D.A. Fishman

  • Equalization in amplified WDM lightwave transmission systems

    A.R. Chraplyvy;J.A. Nagel;R.W. Tkach

  • WDM systems with unequally spaced channels

    F. Forghieri;R.W. Tkach;A.R. Chraplyvy

  • Reduction of four-wave mixing crosstalk in WDM systems using unequally spaced channels

    Unknown

  • Effect of fiber nonlinearity on long-distance transmission

    Unknown

  • Experimental Investigation of Inter-Modal Four-Wave Mixing in Few-Mode Fibers

    R. Essiambre;M. A. Mestre;R. Ryf;A. H. Gnauck

  • Spontaneous Brillouin scattering for single-mode optical-fibre characterisation

    R.W. Tkach;A.R. Chraplyvy;R.M. Derosier

  • Dependence of cross-phase modulation on channel number in fiber WDM systems

    D. Marcuse;A.R. Chraplyvy;R.W. Tkach

  • Fast power transients in WDM optical networks with cascaded EDFAs

    Y. Sun;A.K. Srivastava;J.L. Zyskind;J.W. Sulhoff

  • Chapter 8 – Fiber Nonlinearities and Their Impact on Transmission Systems

    Unknown

  • Phase modulation to amplitude modulation conversion of CW laser light in optical fibres

    A.R. Charaplyvy;R.W. Tkach;L.L. Buhl;R.C. Alferness

  • Improving the Nonlinear Tolerance of Polarization-Division-Multiplexed CO-OFDM in Long-Haul Fiber Transmission

    Xiang Liu;F. Buchali;R.W. Tkach

  • 1-Tb/s transmission experiment

    A.R. Chraplyvy;A.H. Gnauck;R.W. Tkach;J.L. Zyskind

  • Fast-link control protection of surviving channels in multiwavelength optical networks

    Srivastava;J.L. Zyskind;Y. Sun;J. Ellson

  • 8*10 Gb/s transmission through 280 km of dispersion-managed fiber

    A.R. Chraplyvy;A.H. Gnauck;R.W. Tkach;R.M. Derosier

  • Effect of modulation statistics on Raman crosstalk in WDM systems

    F. Forghieri;R.W. Tkach;A.R. Chraplyvy

  • High-Capacity Optical Transmission Systems

    A.H. Gnauck;R.W. Tkach;A.R. Chraplyvy;T. Li

  • What is the actual capacity of single-mode fibers in amplified lightwave systems?

    A.R. Chraplyvy;R.W. Tkach

  • M-ary pulse-position modulation and frequency-shift keying with additional polarization/phase modulation for high-sensitivity optical transmission

    Xiang Liu;S. Chandrasekhar;T. H. Wood;R. W. Tkach

  • Brillouin scattering in externally modulated lightwave AM-VSB CATV transmission systems

    X.P. Mao;G.E. Bodeep;R.W. Tkach;A.R. Chraplyvy

Frequent Co-Authors

Andrew R. Chraplyvy
Andrew R. Chraplyvy Nokia (United States)
Alan H. Gnauck
Alan H. Gnauck Nokia (United States)
Yun Chur Chung
Yun Chur Chung Korea Advanced Institute of Science and Technology
Sethumadhavan Chandrasekhar
Sethumadhavan Chandrasekhar Nokia (United States)
Xiang Liu
Xiang Liu Nanjing Tech University
Peter J. Winzer
Peter J. Winzer Nokia (United States)
Thomas Edward Darcie
Thomas Edward Darcie University of Victoria
Thomas H. Wood
Thomas H. Wood Alcatel Lucent (Germany)
Thomas L. Koch
Thomas L. Koch University of Arizona
Robert M. Jopson
Robert M. Jopson Nokia (United States)

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