Abstract

We propose a novel scheme using a microring resonator (MRR) structure in silicon photonics (SiP) for the elimination of signal-to-signal beat interference (SSBI) in a direct detection, optical orthogonal frequency division multiplexing (DDO-OFDM) system. Unlike other SSBI cancellation techniques, SiP-based MRR shows unique advantages such as compactness and low cost. We examine performance as a function of MRR characteristics, with particular attention to signal wavelength drift vis-a-vis the MRR operating point. In the experimental demonstrations, an EVM reduction of 6% is realized.

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