High-extinction-ratio low-voltage dual-racetrack modulator for low-power DAC-less PAM-4 modulation.
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DOI: 10.1364/ol.448441
Abstract: In a parallel-coupled dual-racetrack modulator, resonant light in two resonators can interfere with each other. In lieu of critical coupling, such interference is capable of producing high extinction ratios (ERs) for high-speed modulation. Experiments demonstrate… read more here.
Keywords: modulation; modulator; racetrack modulator; high extinction ... See more keywords