Pixel Photonics and the EIC Accelerator: Photon Counters on a Chip

A photonic quantum computer, a quantum-encrypted fibre link and a laser link to a satellite all end in the same component: a detector that registers a single particle of light, reliably and with a precise time stamp. One class of detector for this job uses superconducting nanowires cooled to a few degrees above absolute zero. Pixel Photonics, a spin-off of the physics department of the University of Münster, lays those nanowires on top of optical waveguides on a chip, so that many detectors can share one cryostat instead of each needing its own optical setup.

The EIC Accelerator selected the company's MULTIWAVE project at the 1 October 2025 cut-off for blended finance. CORDIS records an EU contribution of €2,499,306.25, a grant agreement signed on 29 May 2026 and a project running from 1 June 2026 to 31 May 2028. The company and its investors announced on 9 April 2026 that the EIC package is worth €8.5 million, €2.5 million as a grant and €6 million as equity, alongside a €5 million seed first closing led by Futury Capital. Five months into a two-year project, this article sets out what MULTIWAVE promised and what can already be checked.

Nanowires on a waveguide

A superconducting nanowire single-photon detector (SNSPD) is a wire a few nanometres thick, held just below its superconducting temperature. A single absorbed photon breaks the superconductivity in a small spot and produces a measurable voltage pulse. Pixel Photonics combines the nanowires with nanophotonic waveguides on one chip, as Tech.eu describes the design, so that light is guided to each detector on the chip itself. The idea grew out of research in the groups of Wolfram Pernice and Carsten Schuck at Münster, according to Quantonation and The Quantum Insider, both reporting the 2022 seed round.

The company's feature page claims a range of 400 to 2,000 nanometres without changing the module, timing jitter typically in the tens of picoseconds, dark counts typically below 1 Hz and recovery typically under 10 nanoseconds. It gives no measured system detection efficiency and no test conditions. Its rack system holds 2 to more than 64 channels in a closed-loop cryostat at 2.5 to 3 kelvin, with a cool-down of about three hours. These are the company's own specifications; no independent test of a commercial unit was found.

What the company has shown since 2022

The company sold a four-channel detector for research in early 2022 and planned systems of 32 channels or more, per Quantonation and The Quantum Insider. In October 2022 it was named a subcontractor to QuiX Quantum, supplying detectors for the photonic quantum computer that the German Aerospace Center had ordered for at least 64 qubits, as reported by The Quantum Insider; DLR's own release describes the €14 million QuiX contract. The company's news page says it delivered two detector systems to QuiX Quantum and DLR in October 2024; no second source for that delivery was found.

In July 2025 Pixel Photonics signed a memorandum of understanding with the British photonic quantum computing company Aegiq to combine Aegiq's single-photon sources with its detectors, reported by Quantum Computing Report and HTGF. An MoU is not a purchase contract. HTGF's text says the company has customers in research, quantum technology and the life sciences since its detector series launched in 2022, without naming them, and the company's about page also speaks of "various customers" without names. No revenue figure has been published.

EU money before the Accelerator

MULTIWAVE is not the company's first EU project. A CORDIS search on 4 November 2026 lists three. In the EIC Pathfinder project PANDA, coordinated by Sorbonne Université with PASQAL among the partners, CORDIS records €1,033,000 for Pixel Photonics from November 2023 to October 2027. In QLASS, a Politecnico di Milano project on glass-based photonic quantum circuits, it records €1,591,250.26 from January 2024 to December 2026. The QLASS periodic report for January 2024 to June 2025 says "a 16 channel detector array has been developed", without naming the partner that built it.

National money came first. A Startbase report of August 2023 names federal research projects led or joined by the company, including QSAMIS and MultiQomm for quantum key distribution, without amounts. In February 2025 the German agency SPRIND granted €1 million for multi-mode detection, reported by Tech.eu and Optica. That is the same technical goal MULTIWAVE now funds at a larger scale.

The 2026 round

The only venture round found before 2026 was a €1.45 million seed round in March 2022 from HTGF, Quantonation and Hendrik Sabert. In May 2025 Mainsights reported that it was seeking €5 million to ease a production bottleneck, because it shared facilities with the university, and that it had 34 employees. The April 2026 announcement, carried by HTGF, SPRIND and the law firm CMS, matched that target: a €5 million first closing led by Futury Capital, with SPRIND, Kensho Ventures and HTGF.

The announcements add the €8.5 million EIC package to reach €13.5 million. The figures have different standing. CORDIS records the grant. The €6 million of equity is the company's and its investors' figure; no EIC Fund portfolio entry for the company was found on 4 November 2026, and whether the investment has closed is not public.

1. Commercial waveguide-integrated detectorsExistsRack and desktop systems on the product pages; a first sale in 2022 per Quantonation. This predates the EIC project.
2. Multi-mode fibre couplingIn progressThe goal of the 2025 SPRIND grant and of MULTIWAVE; no product or result published.
3. Foundry-compatible fabricationIn progressNo foundry partner named; the company shared university facilities in 2025, per Mainsights.
4. More than 95% efficiency, 400 to 2,000 nmClaimThe company's figure, quoted in CORDIS; no independent measurement found.

Why the EU funds detectors

The Commission adopted its Quantum Europe Strategy in July 2025, and its quantum policy page says a Quantum Act is scheduled for 2026 to expand industrial capacity, including pilot lines, and to strengthen supply chain resilience. All 27 member states have signed the EuroQCI declaration on a quantum communication infrastructure. In photonic quantum computing, single-photon detectors make the measurements on the quantum state, as DLR describes for the QuiX machine, and Pixel Photonics is a German supplier of them. The company has published no market share or price comparison with other detector makers.

Two discrepancies remain in the record. The company and Quantonation give 2020 as the founding year, while HTGF, SPRIND and CMS give 2021. The company's news page dates the MULTIWAVE launch to 1 April 2026, while CORDIS gives a start date of 1 June 2026, after signature on 29 May 2026.

Pixel Photonics was not asked for comment for this article. The reporting is based on publicly available sources, listed below.