Qtlabs builds end‑to‑end quantum communication systems that enable quantum key distribution (QKD) from space, removing distance limits and providing globally secure key exchange for critical infrastructure.
Funding
Funding not disclosed
Founders
Product
Problem
Current encryption methods are vulnerable to future quantum computers, and existing quantum key distribution (QKD) solutions are limited to ground‑based links, restricting secure communication to short distances and line‑of‑sight scenarios.
Solution
Qtlabs provides end‑to‑end quantum communication systems that enable QKD from space, removing distance constraints and delivering globally secure key exchange for critical infrastructure. The company supplies space‑qualified optical ground stations, satellite tracking, beam‑stabilization hardware, and satellite‑to‑ground optical downlink modules that together form a complete quantum‑secure link. Integrated quantum sources and receivers support both BB84 faint‑pulse and entanglement‑based protocols, while adaptive optics mitigate atmospheric turbulence to maintain high‑fidelity photon transmission. By leveraging over two decades of free‑space and satellite optical communication expertise, Qtlabs ensures reliable deployment from low‑Earth orbit to geostationary platforms, extending quantum‑secure connectivity to terrestrial and space networks.
Target Audience
Primary customers are governmental agencies, defense and critical infrastructure operators, and large enterprises that require quantum‑secure communication for satellite, ground, and hybrid networks.
Features
- Space‑qualified quantum sources (faint‑pulse BB84 and entanglement‑based BBM92) ready for launch
- Polarization and phase‑encoding quantum receivers that combine both detection schemes in a single device
- High‑precision optical ground stations capable of classical and quantum communication with LEO, GEO, and beyond
- Satellite tracking and beam‑stabilization subsystems for accurate pointing and low‑loss optical downlinks
- Adaptive optics system for turbulence mitigation and efficient single‑mode fiber coupling under varying weather conditions
- Horizontal free‑space link modules that extend quantum communication to terrestrial point‑to‑point links
- Proven integration in ESA missions (QKDSat, SAGA) demonstrating operational readiness