All-optical OFDM demultiplexing by spectral magnification and band-pass filtering

We propose a simple OFDM receiver allowing for the use of standard WDM receivers to receive spectrally advanced OFDM signals. We propose to spectrally magnify the optical-OFDM super-channels using a spectral telescope consisting of two time-lenses, which enables reduced inter-carrier-interference in...

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Bibliographic Details
Published in:Optics express 2014-01, Vol.22 (1), p.136-144
Main Authors: Palushani, E, Mulvad, H C Hansen, Kong, D, Guan, P, Galili, M, Oxenløwe, L K
Format: Article
Language:English
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Summary:We propose a simple OFDM receiver allowing for the use of standard WDM receivers to receive spectrally advanced OFDM signals. We propose to spectrally magnify the optical-OFDM super-channels using a spectral telescope consisting of two time-lenses, which enables reduced inter-carrier-interference in subcarrier detection by simple band-pass filtering. A demonstration on an emulated 100 Gbit/s DPSK optical-OFDM channel shows improved sensitivities after 4-times spectral magnification.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.22.000136