Demonstration of channel-spacing-tunable demultiplexing of optical orthogonal-frequency-division-multiplexed subcarriers utilizing reconfigurable all-optical discrete Fourier transform

Demonstration of channel-spacing-tunable demultiplexing of optical orthogonal-frequency-division-multiplexed subcarriers utilizing reconfigurable all-optical discrete Fourier transform

We experimentally demonstrate a tunable and reconfigurable optical discrete Fourier transform (DFT) to demultiplex orthogonal-frequency-division-multiplexed subcarriers with 2/3/4 subcarriers at 20/40 GHz frequency spacing. An average power penalty of ~5 dB (~3.5) at bit error ratio of 10(-9) is ach...

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Veröffentlicht in:Optics letters 2012-10, Vol.37 (19), p.3975-3977
Hauptverfasser: Chitgarha, Mohammad Reza, Khaleghi, Salman, Yilmaz, Omer F, Tur, Moshe, Haney, Michael W, Langrock, Carsten, Fejer, Martin M, Willner, Alan E
Format: Artikel
Sprache:eng
Schlagworte:
Demultiplexing
Errors
Fourier transforms
Noise levels
Subcarriers
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Zusammenfassung:We experimentally demonstrate a tunable and reconfigurable optical discrete Fourier transform (DFT) to demultiplex orthogonal-frequency-division-multiplexed subcarriers with 2/3/4 subcarriers at 20/40 GHz frequency spacing. An average power penalty of ~5 dB (~3.5) at bit error ratio of 10(-9) is achieved for 4×20 Gbit/s (4×10 Gbit/s) OFDM signal with 20 GHz frequency spacing.
ISSN:0146-9592
1539-4794
DOI:10.1364/ol.37.003975