Quasi-Real-Time Optical Sampling Scheme for High-Speed Signal Acquisition and Processing
Journal article, 2013
We present a quasi-real-time coherent sampling approach that combines the high-bandwidth and high-fidelity signal acquisition of equivalent-time optical sampling with real-time digital signal processing and equalization algorithms. The quasi-real-time concept enables feasibility studies of optical communication at symbol rates beyond the bandwidth of conventional digitizer approaches. Here we demonstrate the technique using a 107-GBd polarization-division-multiplexed quadrature phase shift keyed signal.
quadrature phase-shift keying (QPSK)
Coherent detection
optical communication
digital signal processing
optical sampling
Author
Mats Sköld
EXFO
G. Raybon
Nokia
A. L. Adamiecki
Nokia
P. J. Winzer
EXFO
Nokia
Henrik Sunnerud
EXFO
Mathias Westlund
EXFO
A. Konczykowska
Joint Lab between Bell Laboratory
F. Jorge
Joint Lab between Bell Laboratory
J. Y. Dupuy
Joint Lab between Bell Laboratory
L. L. Buhl
Nokia
Peter Andrekson
Chalmers, Microtechnology and Nanoscience (MC2), Photonics
IEEE Photonics Technology Letters
1041-1135 (ISSN) 19410174 (eISSN)
Vol. 25 5 504-507 6458983Subject Categories
Other Engineering and Technologies
Physical Sciences
DOI
10.1109/LPT.2013.2239984