We demonstrate high-fidelity optical arbitrary waveform generation with waveform switching via time-domain multiplexing. Compact, integrated waveform shapers based on silica arrayed-waveguide grating pairs with channel spacing are used to shape (line-by-line) two different waveforms from the output of a optical frequency comb generator. Characterization of the time multiplexer’s complex transfer function (amplitude and phase) by frequency-resolved optical gating permits compensation of its impact on the switched waveforms and matching of the measured and target waveforms to better than .
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