Simple all-optical FFT scheme enabling Tbit/s real-time signal processing | Zendy

D. Hillerkuss | Zendy; Marcus Winter | Zendy; M. Teschke | Zendy; A. Marculescu | Zendy; Jiawen Li | Zendy; G. Sigurdsson | Zendy; K. Worms | Zendy; S. Ben Ezra | Zendy; N. Narkiss | Zendy; W. Freude | Zendy; J. Leuthold | Zendy

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Simple all-optical FFT scheme enabling Tbit/s real-time signal processing

Author(s) -

D. Hillerkuss,

Marcus Winter,

M. Teschke,

A. Marculescu,

Jiawen Li,

G. Sigurdsson,

K. Worms,

S. Ben Ezra,

N. Narkiss,

W. Freude,

J. Leuthold

Publication year - 2010

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.18.009324

Subject(s) - fast fourier transform , computer science , orthogonal frequency division multiplexing , signal processing , multiplexing , multidimensional signal processing , optics , signal (programming language) , electronic engineering , digital signal processing , time domain , telecommunications , physics , computer hardware , algorithm , channel (broadcasting) , engineering , computer vision , programming language

A practical scheme to perform the fast Fourier transform in the optical domain is introduced. Optical real-time FFT signal processing is performed at speeds far beyond the limits of electronic digital processing, and with negligible energy consumption. To illustrate the power of the method we demonstrate an optical 400 Gbit/s OFDM receiver. It performs an optical real-time FFT on the consolidated OFDM data stream, thereby demultiplexing the signal into lower bit rate subcarrier tributaries, which can then be processed electronically.

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