SQALE - Scalable Quantum Circuits Based on Microlaser-Pumped Quantum Emitters
Motivation
SQALE addresses the urgent need for scalable quantum hardware by combining quantum dots and integrated microlasers on a single chip. This innovation enables compact single-photon sources for secure quantum communication and high-quality input states for photonic quantum computing. By eliminating bulky external lasers, the project paves the way for miniaturized, practical quantum modules.
Implementation & Objectives
The project integrates InGaAs quantum dots into photonic circuits, resonantly driven by on-chip whispering-gallery microlasers. TU Berlin contributes epitaxy, nanofabrication, and device characterization. JCMwave advances FEM and machine-learning-based design optimization. EAGLEYARD develops packaging, fiber coupling, and cryostat integration. Together, they will realize a fiber-coupled, cryocooled quantum module that demonstrates scalability, efficiency, and readiness for deployment in quantum technologies.
Perspectives
TSQALE will establish a scalable platform for single-photon sources, supporting secure communication and photonic quantum processors. Its modular, fiber-coupled design enables integration into larger networks and future quantum infrastructures. With industrial partners involved, the project opens a pathway from research to commercial quantum hardware solutions.
Consortium:
- Technische Universität Berlin (TUB) (Koordinator)
- JCMwave GmbH (JCM)
- EAGLEYARD Photonics GmbH (EAGLEYARD)
Contact: Prof. Dr. Stephan Reitzenstein, https://www.tu.berlin/agquantumdevices
Duration: 07/2024 – 07/2027
