Optical arbitrary waveform generation (OAWG) based on RF injection-locked Kerr soliton combs

We demonstrate the first optical arbitrary-waveform generator that relies on a Kerr-soliton microcomb as a multi-wavelength light source. The concept combines RF injection-locking of the comb-tone spacing with phase-stabilized spectral stitching. We demonstrate high-quality 288 GBd 64QAM transmission along with spread-spectrum communications at SNR down to –17 dB.