Sparrow Quantum

Sparrow Quantum is a spin-out from a powerhouse of innovation—Professor Peter Lodahl’s research group at the Niels Bohr Institute. With 25+ years of groundbreaking research and nearly a decade of engineering expertise, we are dedicated to advancing the frontier of high-quality photon generation for quantum technologies. We specialize in light-matter interfaces—the essential building blocks for scaling optical quantum technologies. At the core of our innovation is our on-chip deterministic single-photon source, a breakthrough technology that sets industry benchmarks and is trusted by quantum technology leaders worldwide. By delivering high-purity, high-efficiency photons, Sparrow Quantum empowers its partners and customers to push the boundaries of quantum computing and secure communication, transforming the immense potential of quantum technology into real-world innovation and impact. Learn more at