论文标题
高质量的多波长量子光源在氮化硅微环芯片上
High-quality multi-wavelength quantum light sources on silicon nitride micro-ring chip
论文作者
论文摘要
多波长量子光源，尤其是在电信频段，在量子信息技术中非常需要。尽管最近有令人印象深刻的进步，但这种具有高质量的量子光源仍然具有挑战性。在这里，我们使用氮化硅微型环（自由光谱范围为200 GHz）演示了多波长量子光源。在25.6 nm的波长范围内确保了八对相关光子的产生。 With device optimization and noise-rejecting filters, our source enables the generation of heralded single-photons - at a rate of 62 kHz with $g^{(2)}_{h}(0)=0.014\pm0.001$, and the generation of energy-time entangled photons - with a visibility of $99.39\pm 0.45\%$ in the Franson interferometer.在CMOS兼容平台中，在室温和电信波长下，这些结果代表了朝着量子网络集成量子轻设备的重要步骤。
Multi-wavelength quantum light sources, especially at telecom band, are extremely desired in quantum information technology. Despite recent impressive advances, such a quantum light source with high quality remains challenging. Here we demonstrate a multi-wavelength quantum light source using a silicon nitride micro-ring with a free spectral range of 200 GHz. The generation of eight pairs of correlated photons is ensured in a wavelength range of 25.6 nm. With device optimization and noise-rejecting filters, our source enables the generation of heralded single-photons - at a rate of 62 kHz with $g^{(2)}_{h}(0)=0.014\pm0.001$, and the generation of energy-time entangled photons - with a visibility of $99.39\pm 0.45\%$ in the Franson interferometer. These results, at room temperature and telecom wavelength, in a CMOS compatible platform, represent an important step towards integrated quantum light devices for the quantum networks.
