Xanadu and GlobalFoundries Target 300mm for Photonic Quantum

Xanadu Quantum Technologies and GlobalFoundries (GF) have entered a multi-year strategic partnership aimed at moving key photonic quantum computing technologies into high-volume semiconductor manufacturing.

The collaboration will initially focus on transferring and industrializing Xanadu’s superconducting nanowire single-photon detectors (SNSPDs) and ultra-low-loss silicon nitride (SiN) photonics using GF’s 300 mm manufacturing line in Malta, New York. The companies position the effort as a manufacturing foundation for future fault-tolerant photonic quantum computers and, ultimately, quantum data centers.

Xanadu + GlobalFoundries: Key Points • Manufacturing: Xanadu technologies will be transferred to GF’s 300 mm production line in Malta, New York. • Photonics: Initial work targets ultra-low-loss silicon nitride (SiN) photonics. • Detection: The partnership will industrialize Xanadu’s superconducting nanowire single-photon detectors (SNSPDs). • Architecture: SNSPDs serve as Xanadu’s photon-number-resolving detector platform for utility-scale systems. • Next step: The companies are exploring additional high-performance quantum modules beyond SiN and SNSPDs. • Long-term target: Manufacturing infrastructure for fault-tolerant quantum systems and future quantum data centers.

In Xanadu’s photonic architecture, photons carry quantum information through integrated optical circuits. One of the challenges is detecting those photons with sufficiently high efficiency and resolving the number of photons arriving in a pulse. Xanadu has selected SNSPDs as its photon-number-resolving detector technology, with the objective of increasing system speed while reducing the hardware overhead required for utility-scale systems.

The other major component of the partnership is ultra-low-loss SiN photonics. These circuits guide photons across the quantum processor while minimizing optical loss, an especially important requirement because accumulated loss directly affects the resources required for fault-tolerant photonic computation.

Moving these technologies onto GF’s commercial 300 mm manufacturing infrastructure represents a shift from specialized quantum device development toward repeatable semiconductor production. Xanadu and GF said they will also evaluate additional work packages involving high-performance quantum modules.

“Transitioning quantum computing technology to a high-volume manufacturing line is fundamental to delivering quantum computing at scale,” said Christian Weedbrook, founder and CEO of Xanadu.

Nicholas Sergeant, VP of Quantum Technology Solutions at GF, said the partnership creates a path toward industrializing components needed for fault-tolerant quantum systems.

The significance of this agreement is less about introducing a new quantum computing architecture than about addressing one of the harder requirements for making an existing architecture commercially scalable: manufacturing.

Xanadu has spent several years assembling the pieces of a modular photonic quantum platform. Its Aurora prototype demonstrated a networked architecture using 35 photonic chips connected by 13 kilometers of optical fiber, while subsequent work has concentrated heavily on lowering optical losses, improving detectors and making photonic components manufacturable at semiconductor scale.

The GF agreement fits directly into that progression. Xanadu has already established manufacturing relationships elsewhere in its supply chain. Earlier this year it expanded work with Tower Semiconductor around high-volume silicon photonics, including ultra-low-loss SiN waveguides, while partnerships with Corning and Thorlabs address fiber and optical interconnection. Xanadu is also developing its own 158,000-square-foot Inception photonics R&D and manufacturing facility in Toronto under the CAD $893 million Project OPTIMISM.

GF, meanwhile, has been expanding its role as a manufacturing platform for quantum technologies rather than betting exclusively on one qubit modality. Its Quantum Technology Solutions business targets manufacturing requirements across photonic, superconducting, trapped-ion, spin and other quantum architectures. GF also has prior experience applying commercial semiconductor manufacturing to photonic quantum computing, including its long-running work with PsiQuantum.

The manufacturing question is therefore becoming an important competitive dimension in quantum computing. Laboratory performance remains critical, but fault-tolerant machines will require large quantities of devices with tightly controlled optical loss, detector efficiency, process variation and yield. The Xanadu-GF partnership is intended to bring two particularly important elements of Xanadu’s architecture—SiN photonics and SNSPD detectors—into that industrial manufacturing framework.

Xanadu Quantum Technologies NASDAQ / TSX: XNDU

Focus — Photonic quantum computing; fault tolerance

Key Technologies — Integrated photonics, SiN waveguides, SNSPDs, photonic qubits, optical networking

Objective — Develop scalable fault-tolerant photonic quantum computers and supporting quantum data-center infrastructure.

Aug. 28, 2026 QUANTUM — Xanadu Lands CAD $195M for Quantum Photonics Manufacturing Project OPTIMISM and the Inception facility expand Xanadu’s internal photonics manufacturing and integration capabilities.

June 10, 2026 QUANTUM — Xanadu Sets New Benchmark for Ultra-Low-Loss Photonic Chip Packaging Xanadu reported average edge-coupling loss of 0.085 dB per facet.

May 21, 2026 QUANTUM — GF Launches Quantum Tech Solutions to Scale U.S. Quantum Manufacturing GF established a dedicated business for manufacturing quantum processors, control electronics, packaging and related technologies.

Feb. 19, 2026 QUANTUM — Tower Semiconductor Aligns SiPho Platform with Xanadu’s Photonic Quantum Roadmap Additional context for Xanadu’s strategy of moving quantum photonics onto established semiconductor manufacturing platforms.

Jan. 13, 2026 QUANTUM — Xanadu Partners with Thorlabs to Scale Fiber Optics for Quantum Data Centers The partnership addresses high-volume production of low-loss fiber components needed around Xanadu’s photonic processors.

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