Quantum Communication 101
To understand quantum communication and its applications, we must first introduce the essential concepts of quantum information. In this chapter we explore the quantum bit, or qubit, as well as
Minimally complex ion traps as modules for quantum communication
Our goal here has been to show that even very simple modules can be entirely adequate as building blocks of universal communication and computation systems. The numbers we discuss
Micro-integrated photonic modules for quantum technology applications
These modules serve various quantum technology applications, e.g. quantum sensing, timing and precision metrology. In addition, our hybrid micro-integration technology allows us to build
Recent progress in quantum photonic chips for quantum
Here, we provide an overview of the advances in quantum photonic chips for quantum communication, beginning with a summary of the prevalent photonic integrated fabrication platforms
Integrated Photonics for Quantum Communications and Metrology
It encompasses the on-chip generation, manipulation, storage, and detection of photonic quantum information, showcased through applications in quantum communication and metrology.
Quantum Communication Technologies
Quantum Key Distribution (QKD) is a next-generation cybersecurity technology that uses the principles of quantum physics to securely exchange encryption keys. Unlike traditional cryptographic methods,
Integrated optical modules for quantum communication
A complete quantum communication system (see Fig. 1) has been set up for development and testing of all QC components. It has been built from of-the-shelf components at the Fraunhofer HHI as a test
COMPONENTS FOR OPTICAL AND QUANTUM
FLAME is a compact, frequency-stabilised laser module with integrated vapour cell that allows locking to spectral features of an atomic reference. This first FLAME product addresses transitions of Rubidium
On-Chip Quantum Communication Devices
Three distinct integration platforms, namely indium phosphide based monolithic integration, polymer-based hybrid integration and the CMOS-compatible silicon platform, have been employed to
Optical Power Meters & Sources
High-precision power meters (Ge/InGaAs) and stabilized light sources for insertion loss and return loss testing.
OTDR & Fiber Characterization
Full-featured OTDR, fiber OTDR testers, and modular OTDR test modules for network deployment and troubleshooting.
OSA & Eye Diagram Analyzer
High-resolution OSA for DWDM and eye diagram testers for signal integrity validation.
BERT & Endface Inspection
BERT up to 800G, fiber endface inspection probes, and extinction ratio meters for comprehensive testing.