M
Martin Sjödin
Researcher at Chalmers University of Technology
Publications - 35
Citations - 1182
Martin Sjödin is an academic researcher from Chalmers University of Technology. The author has contributed to research in topics: Quadrature amplitude modulation & Phase-shift keying. The author has an hindex of 15, co-authored 34 publications receiving 1113 citations.
Papers
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Journal ArticleDOI
All-optical phase and amplitude regenerator for next-generation telecommunications systems
Radan Slavik,Francesca Parmigiani,Joseph Kakande,Carl Lundstrom,Martin Sjödin,Peter A. Andrekson,Ruwan Weerasuriya,Stylianos Sygletos,Andrew D. Ellis,Lars Gruner-Nielsen,Dan Jakobsen,Soren Herstrom,Richard Phelan,James O'Gorman,Adonis Bogris,Dimitris Syvridis,Sonali Dasgupta,Periklis Petropoulos,David J. Richardson +18 more
TL;DR: The development of the first practical ('black-box') all-optical regenerator capable of removing both phase and amplitude noise from binary phase-encoded optical communications signals is reported.
Journal ArticleDOI
Comparison of polarization-switched QPSK and polarization-multiplexed QPSK at 30 Gbit/s.
TL;DR: The first experimental results for polarization-switched QPSK (PS-QPSK) are presented and it is shown that the two modulation formats have similar nonlinear tolerance and that optical dispersion compensation outperforms compensation with digital signal processing in the single channel case.
Journal ArticleDOI
Modified constant modulus algorithm for polarization-switched QPSK.
Pontus Johannisson,Martin Sjödin,Magnus Karlsson,Henk Wymeersch,Erik Agrell,Peter A. Andrekson +5 more
TL;DR: By using a generalized cost function, a modified constant modulus algorithm that allows polarization demultiplexing and equalization of polarization-switched QPSK is found and an implementation that allows easy switching between the conventional and the modified CMA is described.
Journal ArticleDOI
40-Gbaud 16-QAM transmitter using tandem IQ modulators with binary driving electronic signals.
Guo-Wei Lu,Mats Sköld,Pontus Johannisson,Jian Zhao,Martin Sjödin,Henrik Sunnerud,Mathias Westlund,Andrew D. Ellis,Peter A. Andrekson +8 more
TL;DR: The modulator bandwidth requirements and tolerance to accumulated chromatic dispersion through numerical simulations are investigated, and the minimum theoretical insertion attenuation is calculated analytically.
Journal ArticleDOI
OSNR Requirements for Self-Homodyne Coherent Systems
TL;DR: In this article, the optical signal-to-noise ratio requirements for a self-homodyne coherent system are investigated theoretically and experimentally and compared to intradyne (ID) detection.