The research demonstrates high quantum efficiency in photodiodes integrated with optical waveguides, indicating significant advancements for photonic circuits.
The integration of photodiodes with optical waveguides is increasingly important for photonic integrated circuit development. We report modified uni-traveling-carrier photodiodes heterogeneously integrated onto Si3N4 optical waveguides, achieving quantum efficiencies up to 91% at 1550 nm. The combination of high quantum efficiencies and ultra-low dark currents yields high signal-to-noise ratios over a broad range of optical signal powers.
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Le et al. (2026) studied this question.
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