Quasi-Real-Time Optical Sampling Scheme for High-Speed Signal Acquisition and Processing

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 c...

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Bibliographic Details
Published in:IEEE photonics technology letters 2013-03, Vol.25 (5), p.504-507
Main Authors: Skold, M., Raybon, G., Adamiecki, A. L., Winzer, P. J., Sunnerud, H., Westlund, M., Konczykowska, A., Jorge, F., Dupuy, J., Buhl, L. L., Andrekson, P. A.
Format: Article
Language:English
Subjects:
Bandwidth
Coherent detection
digital signal processing
High speed optical techniques
Optical attenuators
optical communication
Optical modulation
Optical polarization
Optical receivers
optical sampling
Optical transmitters
quadrature phase-shift keying (QPSK)
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Summary: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.
ISSN:1041-1135
1941-0174
1941-0174
DOI:10.1109/LPT.2013.2239984