Enhanced performance of phase-conjugated OFDM subcarriers using digital coherent superposition

Abstract

We have recently demonstrated the improved phase noise tolerance in coherent optical OFDM by digital coherent superposition of optical OFDM subcarriers, which are phase-conjugated pairs with Hermitian symmetry. In this approach, we realized DCS of OFDM subcarriers in single polarization (or channel), denoted as SP-DCS-OFDM. In this paper, we show that… (More)
DOI: 10.1007/s11107-015-0522-2

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