CMOS photonic integrated source of broadband polarization-entangled photons

作者：Alexander Miloshevsky, Lucas M. Cohen, Karthik V. Myilswamy, Muneer Alshowkan, Saleha Fatema, Hsuan‐Hao Lu, Andrew M. Weiner, Joseph M. Lukens · 发表于：Optica Quantum · 年份：2024 · DOI：10.1364/opticaq.521418 · 被引用次数：23 · 研究领域：Photonic and Optical Devices、Advanced Photonic Communication Systems、Optical Network Technologies

We showcase a fully on-chip CMOS-fabricated silicon photonic integrated circuit employing a bidirectionally pumped microring and polarization splitter-rotators tailored for the generation of broadband (>9 THz), high-fidelity (90–98%) polarization-entangled photons. Spanning the optical C+L-band and producing over 116 frequency-bin pairs on a 38.4-GHz-spaced grid, this source is ideal for flex-grid wavelength-multiplexed entanglement distribution in multiuser networks.