All-optical OFDM demultiplexing with optical partial Fourier transform and coherent sampling

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We propose a novel scheme with a “time-lens”-based partial optical Fourier transform (OFT) and coherent sampling for high-speed complex orthogonal frequency-division multiplexing (OFDM) signal detection. Compared with all-optical OFDM demultiplexing with a matched optical filter, our proposed method replaces specialized optical filters with commercially available equipment, which relaxes stringent manufacturing and operational requirements. Our simulation shows that even with a partial OFT, theoretically, close to inter-channel interference-free performance is possible. In addition, we performed a proof-of-concept experiment of 16 × 10 Gbaud quadrature phase-shift keying (QPSK) all-optical OFDM detection, with all the bit error rates far below the 7% hard-overhead forward error correction limit.
Original languageEnglish
JournalOptics Letters
Volume44
Issue number2
Pages (from-to)443-446
ISSN0146-9592
DOIs
Publication statusPublished - 2019
CitationsWeb of Science® Times Cited: No match on DOI
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