Title :
Terabit/s FFT processing – optics can do it on-the-fly
Author :
Leuthold, J. ; Hillerkuss, D. ; Winter, M. ; Li, J. ; Worms, K. ; Koos, C. ; Freude, W. ; Ezra, S.B. ; Narkiss, N.
Author_Institution :
Inst. of Photonics & Quantum Electron., Univ., Karlsruhe, Germany
Abstract :
The discrete Fourier Transform (DFT) or its more popular efficient algorithm, the Fast Fourier Transform (FFT) is one of the important mathematical functions in the toolbox of signal processing. To this date its processing speed is limited by the underlying electronic processors. We show that FFT signal processing limitations can be overcome by performing the FFT in the optical domain and demonstrate the power of the technique by performing the FFT on a single source 10 Tbit/s OFDM signal.
Keywords :
discrete Fourier transforms; optical communication; optical information processing; FFT signal processing; discrete Fourier transform; electronic processors; fast Fourier transform; fiber optics communications; mathematical functions; signal processing; terabits; Discrete Fourier transforms; Fast Fourier transforms; OFDM; Optical fiber communication; Optical filters; Optical interferometry; Optical signal processing; Signal processing; Signal processing algorithms; Signal sampling; FFT; Fiber optics and optical communications; OFDM; Signal processing;
Conference_Titel :
Transparent Optical Networks (ICTON), 2010 12th International Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-7799-9
Electronic_ISBN :
978-1-4244-7797-5
DOI :
10.1109/ICTON.2010.5549337
