Juni 2026
Product
catalogue
Overview
01 Executive Summary 02 Technology 03 Product ovweview 04 Sparrow Core 05 Sparrow Nest 07 Apendix Sparrow Quantum
Product catalogue 2026
03
Our expertise lies in advancing
light-matter interfaces—the critical components required to scale optical quantum technologies. At the heart of our innovation is our on-chip deterministic singlephoton source, Sparrow Core, a technology that sets industry benchmarks and is trusted by quantum technology leaders worldwide.
Sparrow Quantum
Product catalogue 2026 - Executive Summary
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Setting the Benchmark for LightMatter Interfaces Building on two decades of research and over a decade of engineering advancements, Sparrow
Quantum provides quantum photonic chip technology that sets industry benchmarks in purity, indistinguishability, and brightness.
At Sparrow Quantum, we specialise in producing a deterministic source of single photons to deliver the highest-fidelity photon generation on the market. Building on decades of research at the Niels Bohr Institute, our technology offers industry-leading performance and reliability, opening new opportunities for next-generation quantum applications.
Building on two decades of research and over a decade of engineering advancements, Sparrow
Quantum provides quantum photonic chip technology that sets industry benchmarks in purity, indistinguishability, and brightness.
At Sparrow Quantum, we specialise in producing a deterministic source of single photons to deliver the highest-fidelity photon generation on the market. Building on decades of research at the Niels Bohr Institute, our technology offers industry-leading performance and reliability, opening new opportunities for next-generation quantum applications. Sparrow Quantum
Product catalogue 2026 - Technology
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Setting the Benchmark for Light-Matter Interfaces
Sparrow Quantum
Product catalogue 2026 - Technology
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Product Overview
Single-Photon Source
Single-Photon Source
Chip
System
Sparrow
Sparrow
Nest
Core
Purity
Purity
Chip
Purity
Chip
n naling uantum
Delivered to several customers
Delivered to and tested
including Quix Quantum, Vienna
by ORCA Computing
University, and Warsaw University
from Sep-2024
Sparrow Quantum
Product catalogue 2026 - Productoverview
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Purity
Features a unique planar design that guides quantum light with over 90% efficiency.
Features a unique planar design that guides quantum light with over 90% efficiency.
>45% >99% Purity
Efficiency
Features a unique planar design that guides quantum light with over 90% efficiency.
Features a unique planar design that guides quantum light with over 90% efficiency.
>99% >45% 0.02 90
0.01
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07-22 02
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80
07-21 18
Monitor Power (uW)
Sparrow
Core
Indistinguishability
Time Optimized for quantum computing Purity
Enabling quantum breakthroughs, one photon at a time Sparrow Quantum
Product catalogue 2026 - Sparrow Core
Chip
Light
Purity
Cooling
03
Our Flagship Product
Sparrow Core
At Sparrow Quantum, we leverage our cutting-edge
Our next-generation products, currently demonstrated
proprietary technology based on quantum dots to
in our R&D lab, will advance from deterministic sources
develop advanced photonic quantum chips. Our first-
to entanglement sources, scalable multi-emitter photon
generation products feature on-chip deterministic
sources, and deterministic multi-photon entanglement
single-photon sources, offering industry-leading
sources.
purity, indistinguishability, and efficiency. These
These advancements will enable us to disrupt quantum
products, already delivered to customers, have
computing and communication, positioning Sparrow
established Sparrow Quantum as a pioneer in single-
Quantum as a critical player in the development of the
photon technology and light-matter interfaces.
quantum internet.
“We’re on a mission to deliver the most advanced
Sparrow Core is a high-performance deterministic
photonic quantum chips, becoming a key enabler in
single-photon source, leveraging quantum dots. It
the quantum industry.”
delivers best-in-class efficiency, exceptional
– Kurt Stokbro, CEO of Sparrow Quantum
stability, and reliable performance over extended operation and through multiple thermal cycles. As Sparrow Quantum’s flagship product, Sparrow Core cements the company’s position as a global leader in photonic quantum chips.
Sparrow Quantum
Product catalogue 2026 - Sparrow Core
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Free-Space Optical Setup
Sparrow Quantum
Application
Facts
Single-Photon Source
Chip
Structure
The external connectors on the PCB provide straightforward voltage control, ensuring seamless electrical access to the chip to enable spectral tuning and minimise electrical noise. This acts as the foundational layer, interfacing the chip with external control systems.
The chip itself is a compact 3×3 mm semiconductor chip designed for seamless integration into free-space optical setups (4K cryostat components required). The planar waveguide approach features the separation of in and out-coupling to effectively filter the pump laser from the emitted photons, offering precise and efficient photon management.
Sparrow Core contains hundreds of quantum dot structures within a photonic crystal waveguide, each hosting multiple quantum dots with unique properties. A pulsed laser at 80 MHz excites the quantum dot, generating single photons on demand with industryleading efficiency, indistinguishability, and purity.
Type Material
PCB Polymer-Ceramic
Dimensions Compact
3×3 mm Semiconductor
Type Material
PCB Polymer-Ceramic
Exciton Full time position
X0 Full time position
Setups
4K cryostat components required
Exciton Full time position
X0 Full time position
Product catalogue 2026 - Sparrow Core
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A Closer Look at The Source: Features and Benefits Single Photons
Collection The photons are collected by a nanophotonic waveguide with near-unity efficiency (β>95%) and directed to an out-coupling diffraction grating.
Electric field
Conversion
Wavelength
Ultra-low noise environment
Telecom wavelength
920–980nm wavelength
By applying a controlled electric field, we achieve an ultra-low noise environment, ensuring the highest fidelity in single-photon generation.
For telecom applications, including 1550 nm, we provide comprehensive application notes with guidance on setup, optimisation, and integration to streamline implementation and reduce development time.
Advanced quantum dot engineering enables wavelength tuning across a range of 920 nm to 980 nm, providing flexibility for various applications.
Sparrow Quantum
Product catalogue 2026 - Sparrow Core
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Sparrow Core
HOM-measurements
Fact Sheet
Example of measured device
Sparrow Quantum
Parameters
Specs
Exciton
Neutral exciton
Wavelength
933 nm
Lifetime
300 ps
Single photon purity
g(2)(0) ~ 1%
Indistinguishability
97%
Source efficiency
50%
Product catalogue 2026 - Sparrow Core
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Explore the architecture
of Sparrow Quantum photonic
Our main font is Space Grotesk (designed by Florian Karsten). We use it wherever possible. Space Grotesk is a contemporary sans-serif typeface rooted in the geometric grotesque tradition. With its distinctive character shapes and subtle quirks, the font offers a balance between precision and personality.
Exciton Full time position
X0 Full time position
Exciton
X0
Full time position
Full time position
Exciton
X0
Full time position
Full time position
Exciton
X0
Full time position
Full time position
Exciton
X0
Full time position
Full time position
Exciton
X0
Full time position
Full time position
Exciton
X0
Full time position
Full time position
Sparrow Quantum
Facts
D. 20.12.24
Facts
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Facts
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Facts
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Facts
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Product catalogue 2026 - Sparrow Core
03
Efficiency
Features a unique planar design that guides quantum light with over 90% efficiency.
Features a unique planar design that guides quantum light with over 90% efficiency.
>99% >45% 0.02 90
0.01
07-22 10
07-22 06
07-22 04
07-22 02
07-22 00
07-21 22
07-21 20
80
07-21 18
Monitor Power (uW)
Sparrow
Nest
Purity
Time Indistinguishability
Optimized for quantum- computing, communication (QKD/networking), and optics teams that want a plugand-play system for deterministic single-photon generation. Sparrow Quantum
Exciton Full time position
X0 Full time position
Exciton Full time position
X0 Full time position
Optimized for quantum computing Laser
Product catalogue 2026 - Sparrow Nest
Optical
module
Electrical
module
Sparrow
Core
Cryostat
03
Discover the architecture
of Sparrow Nest Laser A high-performance, pulsed resonant excitation laser is required to drive Sparrow Core at 80 ± 0.5 MHz; supports lower rates via an external pulse picker (<80 MHz) with dedicated optical in/out. Sparrow Core Supports lower
80 ± 0.5 MHz (<80 MHz)
Precision free-space optics with integrated sensors, camera, and motorized mechanics for stable photon extraction and fiber coupling; single-photon output on PM fiber (PM780, FC/APC) with options (PM980/custom).
Electrical module Industrial-grade computer and control electronics handle automated startup, alignment, calibration, and continuous monitoring for closed-loop thermal/optical stability. Runs as an unattended service and interacts through a served web app or automated with the API. Sparrow Core Supports lower
Optical module
80 ± 0.5 MHz (<80 MHz)
PM fiber Options
PM780, FC/APC PM980/custom
Sparrow Core InAs-based quantum dot chip providing world-class singlephoton metrics (indistinguishability 90–97%, g(2)(0) < 1%, fiber efficiency 30–50%), with fixed per-chip wavelength typically 920– 960 nm.
Cryostat
We recommend a compact cryostat to house the Sparrow Core; compressor is placed in an adjacent rack for vibration
Indistinguishability Fiber efficiency Wavelength
90–97%, g(2)(0) < 1% 30-50% 920–960 nm
suppression, supporting stable long-run operation. Sparrow Core Supports lower
Sparrow Quantum
80 ± 0.5 MHz (<80 MHz)
Product catalogue 2026 - Sparrow Nest
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Built for seamless deployment in labs and supercomputing centers Sparrow Nest is built for advanced labs and HPC sites, and ships as a fully selfcontained system in a standard 19-inch rack. It runs on standard power and integrates all subsystems in-rack for quick deployment and reliable day-to-day operation.
Height: 42U
Width: 800 mm
Sparrow Quantum
Depth: 1000 mm
Product catalogue 2026 - Sparrow Nest
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Sparrow Nest is a fully integrated, rack-mounted single-photon generator powered by Sparrow Core, featuring industrial-grade control, sensors, and auto-alignment for reliable, high-quality photon output at the touch of a button.
Its unique aesthetic makes it particularly suitable for creative branding, editorial layouts, and expressive interfaces where visual identity matters. The typeface adapts well across different screen sizes, and works effectively in both large headlines and smaller body text.
Its unique aesthetic makes it particularly suitable for creative branding, editorial layouts, and expressive interfaces where visual identity matters. The typeface adapts well across different screen sizes, and works effectively in both large headlines and smaller body text.
Facts
Deploy
Bring Quantum Systems into National Use
Integrate Sparrow-enabled systems—such as ORCA Computing’s commercially available hardware—into strategic national assets like the GEFION AI supercomputer. This will unlock early industry use cases, strengthen Denmark’s quantum software sector, and send a clear signal of national commitment to quantum leadership.
Sparrow Quantum
Product catalogue 2026 - Sparrow Nest
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Supporting Sparrow Quantum
means backing a company with Industrial-grade quantum chips built on frontier science
Active commercial traction with top-tier global players
Category-defining technology solving quantum scalability at the hardware level
This is Europe’s opportunity to lead from the front—and Denmark’s chance to be a cornerstone in the most transformative technological revolution of the century.
Let’s build it together.
Contact
informations
CEO
Founder & CQO
Kurt Stokbro Peter Lodahl Sparrowquantum.com
kurt.stokbro@sparrowquantum.com peter.lodahl@sparrowquantum.com Nordre Fasanvej 215, 2000–Copenhagen, Denmark
+45 31 13 66 55