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Your search keyword '"Cincotti, Gabriella"' showing total 12 results
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12 results on '"Cincotti, Gabriella"'

3. Hybrid MDM/OCDM system with mode and code multi-/demultiplexers

Author

Kodama, Takahiro, additional, Isoda, Tomoki, additional, Morita, Koji, additional, Maruta, Akihiro, additional, Maruyama, Ryo, additional, Kuwaki, Nobuo, additional, Matsuo, Shoichiro, additional, Wada, Naoya, additional, Cincotti, Gabriella, additional, and Kitayama, Ken-ichi, additional

Published
2013
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12. Optical OFDM based on the fractional Fourier transform

Author

Gabriella Cincotti and Cincotti, Gabriella

Subjects
Bandlimiting, Computer science, Discrete-time Fourier transform, Non-uniform discrete Fourier transform, business.industry, Fast Fourier transform, Short-time Fourier transform, Physics::Optics, Spectral density estimation, Discrete Fourier transform, Fractional Fourier transform, symbols.namesake, Discrete Fourier transform (general), Fourier transform, Optics, Split-radix FFT algorithm, Discrete sine transform, Fourier analysis, symbols, Electronic engineering, Harmonic wavelet transform, business, Constant Q transform
Abstract

We describe a innovative OFDM scheme based on orthogonal chirped subcarriers, that corresponds to the fractional Fourier transform (FrFT) of the input signal. The FrFT can be electronically implemented with a complexity equivalent to the conventional fast Fourier transform (FFT); on the other hand, the planar device that implements the FrFT in the optical domain is similar to the passive arrayed waveguide grating (AWG) device that performs the FFT. We analyze the spectral efficiency, the peak-to-average power ratio (PAPR) and the frequency offset sensitivity of a FrFT-based optical OFDM system, and make an accurate comparison with the standard FFT-based implementation.

Published
2012

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