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We propose a novel PAPR management technique using fractional Fourier transform subcarriers and time-lens effect. By deforming a high PAPR OFDM signal into a low PAPR Nyquist pulse train in fibre links, signal distortions by a fibre nonlinearity are mitigated.
We demonstrate for the first time optical fractional OFDM system, based on intermediate grids between time and frequency axes. Using reconfigurable wavelength selective switches, we demonstrated open eye diagrams, and performance below the FEC-limit.
We demonstrate optical label switching operation with a novel label processing scheme using a phase-shifted preamble-based optical serial-to-parallel converter. Packet transfer for 40Gbps two-bit label and payloads was successfully achieved with error free performance for the first time.
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