Critical networks
Add route diversity and a physics-based signal of interception to long-lived security architectures.
AIQSAT project · Technology
Quantum Communication
Quantum key distribution and optical links between orbit and ground
We are developing this technology as part of an intelligent, quantum-secure satellite network for stable data exchange between orbit and Earth.
Quantum communication
What we are developing
Quantum communication makes an intercepted link detectable by physics rather than by policy. We work on satellite quantum key distribution, free-space optical terminals and the classical post-processing that turns single photons into usable encryption keys.
Quantum key distribution
Decoy-state BB84 and entanglement-based protocols for tamper-evident key exchange between spacecraft and optical ground stations.
Free-space optical terminals
Precise pointing, acquisition and tracking, adaptive optics and beam control that keep a link stable across thousands of kilometres.
Post-processing and key management
Sifting, error correction and privacy amplification, plus key storage and distribution into existing terrestrial network security.
Post-quantum hybrid security
Combining quantum-distributed keys with post-quantum cryptography so links stay protected even when a satellite pass is not available.
Technology stack
- Decoy-state BB84 & entanglement-based QKD
- Single-photon avalanche detectors
- Laser communication terminals (PAT, adaptive optics)
- Post-quantum cryptography key management
The opportunity
Move intelligence and trust closer to the source
Sensitive data must remain confidential for years, yet future quantum computers may compromise widely used public-key methods. Terrestrial routes also concentrate trust and can leave remote regions without diverse secure paths.
AIQSAT is developing an orbital quantum communications layer that joins photon-level key exchange, precision optical links and post-quantum security into infrastructure that can complement—not replace—existing networks.
System architecture
A connected path from orbital signal to trusted decision
The project is designed as a modular system. Each layer can create value independently, while the complete architecture enables a secure, intelligent data network across orbit and Earth.
- 1Source
Prepare verifiable photons
Controlled optical sources encode quantum states with monitored timing and intensity.
- 2Track
Hold the space-to-ground link
Acquisition, pointing and adaptive control maintain alignment through motion and atmosphere.
- 3Distil
Create usable keys
Sifting, error correction and privacy amplification convert measurements into secure material.
- 4Integrate
Protect real applications
Policy-based key management connects quantum output with post-quantum and conventional systems.
Strategic value
Built around the needs of future operators
AIQSAT is being shaped for organisations that need resilient infrastructure, faster access to useful information and a security model designed for the quantum era.
Telecommunications
Develop premium security services using interoperable interfaces for existing network equipment.
Public institutions
Explore sovereign key infrastructure spanning distance and geography beyond terrestrial fibre.
Infrastructure investors
Participate in a network whose service potential can increase as terminals and orbital nodes are added.
Development path
A staged route from validation to deployment
The roadmap is structured to retire technical risk early, prove interoperability and create clear decision points for partners and capital providers.
Model
Link and threat validation
Establish realistic atmospheric, optical, orbital and security assumptions for target use cases.
Testbed
Integrated optical chain
Demonstrate photon generation, tracking, detection and key processing across a representative link.
Orbit
Quantum link pathfinder
Validate key exchange and application hand-off between an orbital terminal and ground network.
Network
Multi-node service layer
Add routes, partners and orchestration to provide managed hybrid security capacity.
Investment case
An infrastructure opportunity at the intersection of three markets
The project combines differentiated engineering, reusable intellectual property and a platform approach intended to support multiple missions, customers and commercial models.
Defensible integration
Photonics, precision control, cryptography and orbital networking create a multidisciplinary barrier to entry.
Network effects
Each compatible ground station, application and orbital node can expand the utility of the wider system.
Capacity-based services
Potential models include terminal programmes, secure key capacity and managed network access.
Build the next layer with us
A more efficient, resilient and secure future for orbital data.
We are seeking optical, telecom, security and investment partners to define use cases and build an interoperable quantum-secure network.
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