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

Author

Skold, M. ; Raybon, G. ; Adamiecki, A.L. ; Winzer, P.J. ; Sunnerud, Henrik ; Westlund, Mathias ; Konczykowska, Agnieszka ; Jorge, Filipe ; Dupuy, J. ; Buhl, Lawrence L. ; Andrekson, Peter A.

Author_Institution

EXFO Sweden AB, Gothenburg, Sweden

Volume

25

Issue

5

fYear

2013

fDate

1-Mar-13

Firstpage

504

Lastpage

507

Abstract

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.

Keywords

high-speed optical techniques; light polarisation; multiplexing; optical communication; optical information processing; optical signal detection; quadrature phase shift keying; signal sampling; bit rate 107 Gbit/s; equalization algorithms; equivalent-time optical sampling; high-bandwidth signal acquisition; high-fidelity signal acquisition; high-speed signal acquisition; optical communication; polarization-division-multiplexed quadrature phase shift keyed signal; quasireal-time optical coherent sampling; real-time digital signal processing; Bandwidth; High speed optical techniques; Optical attenuators; Optical modulation; Optical polarization; Optical receivers; Optical transmitters; Coherent detection; digital signal processing; optical communication; optical sampling; quadrature phase-shift keying (QPSK);

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2013.2239984

Filename

6458983