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

Zihan Geng, Deming Kong, Bill Corcoran, Pengyu Guan, Francesco da Ros, Edson Porto da Silva, Leif Katsuo Oxenløwe, Arthur James Lowery

Research output: Contribution to journalArticleResearchpeer-review

7 Citations (Scopus)


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
Pages (from-to)443-446
Number of pages4
JournalOptics Letters
Issue number2
Publication statusPublished - 15 Jan 2019

Cite this