Simple all-optical FFT scheme enabling Tbit/s real-time signal processing
Top Cited Papers
- 20 April 2010
- journal article
- Published by Optica Publishing Group in Optics Express
- Vol. 18 (9) , 9324-9340
- https://doi.org/10.1364/oe.18.009324
Abstract
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.Keywords
This publication has 20 references indexed in Scilit:
- Demultiplexer for optical orthogonal frequency-division multiplexing using an optical fast-Fourier-transform circuitOptics Letters, 2009
- Performance of Optical OFDM in Ultralong-Haul WDM Lightwave SystemsJournal of Lightwave Technology, 2007
- Fiber Fourier optics: previous publication.Optics Letters, 2002
- 2.3 picoseconds optical gate monolithically integratingphotodiodeandelectroabsorption modulatorElectronics Letters, 2001
- Fiber Fourier opticsOptics Letters, 2001
- Silica-based integrated optic Mach-Zehnder multi/demultiplexer family with channel spacing of 0.01-250 nmIEEE Journal on Selected Areas in Communications, 1990
- Integrated four-channel Mach-Zehnder multi/demultiplexer fabricated with phosphorous doped SiO/sub 2/ waveguides on SiJournal of Lightwave Technology, 1988
- Silica-based single-mode waveguides on silicon and their application to guided-wave optical interferometersJournal of Lightwave Technology, 1988
- Discrete Fourier transforms by single-mode star networksOptics Letters, 1987
- An algorithm for the machine calculation of complex Fourier seriesMathematics of Computation, 1965