Magnus Karlsson

Summary

Affiliation: Chalmers University of Technology
Country: Sweden

Publications

  1. ncbi request reprint Which is the most power-efficient modulation format in optical links?
    Magnus Karlsson
    Department of Microtechnology and Nanoscience, Chalmers University of Technology, Goteborg, Sweden
    Opt Express 17:10814-9. 2009
  2. ncbi request reprint Multilevel pulse-position modulation for optical power-efficient communication
    Magnus Karlsson
    Department of Microtechnology and Nanoscience, Chalmers University of Technology, SE 412 96 Goteborg, Sweden
    Opt Express 19:B799-804. 2011
  3. ncbi request reprint Constellation diagram analysis of DPSK signal regeneration in a saturated parametric amplifier
    Mats Sköld
    Photonics Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology, SE 412 96 Goteborg, Sweden
    Opt Express 16:5974-82. 2008
  4. doi request reprint Full characterization of the signal and idler noise figure spectra in single-pumped fiber optical parametric amplifiers
    Zhi Tong
    Photonics Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology, , Sweden
    Opt Express 18:2884-93. 2010
  5. doi request reprint Noise performance of optical fiber transmission links that use non-degenerate cascaded phase-sensitive amplifiers
    Zhi Tong
    Photonics Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology, SE 412 96 Goteborg, Sweden
    Opt Express 18:15426-39. 2010
  6. doi request reprint Power efficient subcarrier modulation for intensity modulated channels
    Johnny Karout
    Department of Signals and Systems, Chalmers University of Technology, SE 412 96 Goteborg, Sweden
    Opt Express 18:17913-21. 2010
  7. doi request reprint Influence of self- and cross-phase modulation on 40 Gbaud dual polarization DQPSK/D8PSK signals in 10 Gbit/s OOK WDM systems
    Ekawit Tipsuwannakul
    Department of Microtechnology and Nanoscience MC2, Photonics Laboratory, Chalmers University of Technology, SE 412 96 Gothenburg, Sweden
    Opt Express 18:24178-88. 2010
  8. doi request reprint Comparison of polarization-switched QPSK and polarization-multiplexed QPSK at 30 Gbit/s
    Martin Sjödin
    Photonics Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology, SE 412 96, Goteborg, Sweden
    Opt Express 19:7839-46. 2011

Collaborators

  • Mats Sköld
  • C J McKinstrie
  • Johnny Karout
  • Zhi Tong
  • Peter A Andrekson
  • Martin Sjödin
  • Ekawit Tipsuwannakul
  • Henk Wymeersch
  • Pontus Johannisson
  • Mohsan Niaz Chughtai
  • Adonis Bogris
  • Carl Lundström
  • Peter Andrekson
  • Jonas Mårtensson
  • Marco Forzati

Detail Information

Publications8

  1. ncbi request reprint Which is the most power-efficient modulation format in optical links?
    Magnus Karlsson
    Department of Microtechnology and Nanoscience, Chalmers University of Technology, Goteborg, Sweden
    Opt Express 17:10814-9. 2009
    ..76 dB asymptotic gain over BPSK, for uncoded optical transmission with coherent detection. Low-complexity modulators are presented for the format, as well as an interpretation in terms of quantum-limited sensitivity...
  2. ncbi request reprint Multilevel pulse-position modulation for optical power-efficient communication
    Magnus Karlsson
    Department of Microtechnology and Nanoscience, Chalmers University of Technology, SE 412 96 Goteborg, Sweden
    Opt Express 19:B799-804. 2011
    ..With 16-PPM, gains of up to 5.4 dB are obtained over dual-polarization QPSK, at the cost of reduced spectral efficiency...
  3. ncbi request reprint Constellation diagram analysis of DPSK signal regeneration in a saturated parametric amplifier
    Mats Sköld
    Photonics Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology, SE 412 96 Goteborg, Sweden
    Opt Express 16:5974-82. 2008
    ..The FOPA induced phase noise originates from pump amplitude fluctuations that are transferred to the signal through cross-phase modulation...
  4. doi request reprint Full characterization of the signal and idler noise figure spectra in single-pumped fiber optical parametric amplifiers
    Zhi Tong
    Photonics Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology, , Sweden
    Opt Express 18:2884-93. 2010
    ..Theoretical results agree very well with the experimental data. The idler NF spectrum is also analyzed and measured, which shows a more symmetric profile...
  5. doi request reprint Noise performance of optical fiber transmission links that use non-degenerate cascaded phase-sensitive amplifiers
    Zhi Tong
    Photonics Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology, SE 412 96 Goteborg, Sweden
    Opt Express 18:15426-39. 2010
    ..As a proof of concept, the NF of a fiber parametric amplifier based copier + PSA cascade with inter-stage attenuation representing the fiber link is measured, which shows a 1.8-dB total NF improvement over the conventional EDFA cascade...
  6. doi request reprint Power efficient subcarrier modulation for intensity modulated channels
    Johnny Karout
    Department of Signals and Systems, Chalmers University of Technology, SE 412 96 Goteborg, Sweden
    Opt Express 18:17913-21. 2010
    ..2 dB average electrical power gain and 0.6 dB average optical power gain compared to OOK, while it has a 3.0 dB average electrical power gain and 2.1 dB average optical power gain compared to subcarrier QPSK...
  7. doi request reprint Influence of self- and cross-phase modulation on 40 Gbaud dual polarization DQPSK/D8PSK signals in 10 Gbit/s OOK WDM systems
    Ekawit Tipsuwannakul
    Department of Microtechnology and Nanoscience MC2, Photonics Laboratory, Chalmers University of Technology, SE 412 96 Gothenburg, Sweden
    Opt Express 18:24178-88. 2010
    ..The paper also presents the first numerical analysis of the XPM dependence on the relative state of polarization of the D8PSK with respect to the neighbors...
  8. doi request reprint Comparison of polarization-switched QPSK and polarization-multiplexed QPSK at 30 Gbit/s
    Martin Sjödin
    Photonics Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology, SE 412 96, Goteborg, Sweden
    Opt Express 19:7839-46. 2011
    ..Finally, we propose a novel transmitter for PS-QPSK based on an IQ modulator and two amplitude modulators driven in a push-pull configuration...