Sparrow Quantum — vendor dossier

Sparrow Quantum

Sources & detectors
S

Sparrow Quantum makes deterministic single-photon sources based on self-assembled InAs/GaAs quantum dots embedded in photonic-crystal waveguides. The flagship device emits long strings of indistinguishable single photons into a single optical-fibre mode and is sold to photonic quantum-computing builders and research groups in photonic interconnects and quantum communications. Spin-out from Peter Lodahl's quantum-photonics group at the Niels Bohr Institute, University of Copenhagen, building on two decades of group R&D on light-matter coupling efficiency. Positioned as the on-demand alternative to probabilistic SPDC heralded sources.

HQ
Copenhagen, Denmark
Founded
2016
Status
private
Last verified
Wed May 20 2026 08:00:00 GMT+0800 (Singapore Standard Time)

Timeline

20162017201820192020202120222023202420252026202720282029today
2016
Sparrow Quantum incorporated as a spin-out from Peter Lodahl's quantum-photonics group at the Niels Bohr Institute, University of Copenhagen
2023-05
€4.1M seed round closed to commercialise the on-chip deterministic single-photon source
2025-04
€21.5M Series A round closed to scale photonic-chip supply for quantum-computing customers
2025-12
€27.5M (~$32M) Series A extension led by Novo Holdings — Novo's first direct quantum investment
2026
Scale chip supply and integrate Sparrow sources into photonic quantum-computing customer systems following the 2025 Series A funding
shipped milestone public roadmap

Current flagship

Sparrow Single-Photon Source — InAs/GaAs quantum-dot chip in photonic-crystal waveguide; fibre-coupled deterministic on-demand single-photon emission

Milestones

  1. 2025-12
    €27.5M (~$32M) Series A extension led by Novo Holdings — Novo's first direct quantum investment
    press source ↗
  2. 2025-04
    €21.5M Series A round closed to scale photonic-chip supply for quantum-computing customers
    press source ↗
  3. 2023-05
    €4.1M seed round closed to commercialise the on-chip deterministic single-photon source
    press source ↗
  4. 2016
    Sparrow Quantum incorporated as a spin-out from Peter Lodahl's quantum-photonics group at the Niels Bohr Institute, University of Copenhagen
    press source ↗

Roadmap

  • 2026 Scale chip supply and integrate Sparrow sources into photonic quantum-computing customer systems following the 2025 Series A funding source ↗

Capability details

8 unverified fields
  • modalities.sources.detection_efficiency
  • modalities.sources.dark_count_hz
  • modalities.sources.jitter_ps
  • modalities.sources.products — Public datasheet rate (>20M photons/s into single-mode fibre, >100-photon strings) is from vendor press materials; peer-reviewed numbers from the Lodahl group are higher in some configurations but device-specific.
  • key_personnel — "since" dates for CTO and CMO not surfaced on the vendor team page on this verification pass.
  • shareholders.0.stake_percent
  • shareholders.1.stake_percent
  • milestones — Customer names (PsiQuantum, ORCA) appear in industry-tracker write-ups but are not confirmed on a vendor or customer primary-source page; omitted pending direct confirmation.

People

  • Kurt Stokbro — Chief Executive Officer (since 2022) ↗
  • Peter Lodahl — Founder & Chief Quantum Officer (since 2016) ↗
  • Claus Friis Pedersen — Chief Technology Officer ↗
  • Maria Genckel — Chief Marketing Officer ↗

References