Integration of a dual-pulse-controlled single-photon source achieves over 98% spectral purity, suggesting optimal brightness conditions through delay adjustments.
We fully integrate a dual-pulse-controlled single-photon source on a chip, achieving >98% spectral purity. Additionally, we show both purity and brightness can reach an optimal condition by adjusting relatively delay at a splitting ratio >50%.
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Chen et al. (2025) studied this question.
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