arXiv:2402.09307 · Optica Quantum

CMOS photonic integrated source of broadband polarization-entangled photons

Alexander Miloshevsky, Lucas M. Cohen, Karthik V. Myilswamy, Muneer Alshowkan, Saleha Fatema, Hsuan‐Hao Lu, Andrew M. Weiner, Joseph M. Lukens

Published Jul 3, 2024• 27 citations

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Abstract

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.

DOI: 10.1364/opticaq.521418

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