3D photonic integrated interposer enabling connectivity between multicore fibers and photonic integrated circuits
A novel 3D photonic integrated interposer is developed for coupling the different layers of Multi-core-fiber (MCF) cores with arrays of conventional 2D electro-absorption modulated lasers (EMLs) and photodetectors (PDs). The 3D photonic...
Next Generation XR Systems-Large Language Models Meet Augmented and Virtual Reality
Extended Reality (XR) is evolving rapidly, offering new paradigms for humancomputer interaction. This position paper argues that integrating Large Language Models (LLMs) with XR systems represents a fundamental shift toward more intelligent,...
Analysis of Interaction Mechanisms and Intercomparison of Raytracing Tools for Optimizing THz Simulations
This paper compares different raytracing tools in the sub-THz area, to analyze the weight of several different effects, e.g. reflections, diffractions, scattering or atmospheric attenuation, during raytracing simulations for high frequencies. For...
High-quality deepfakes have a heart!
Recent deepfakes preserve subtle heart rate signals, challenging the assumption that rPPG-based detection remains effective. Our study demonstrates that modern deepfake generation techniques encapsulate the heart rate dynamics of source videos,...
RIS-Assisted 6G Networks: Challenges and Tradeoffs in Control Standardization
Despite extensive theoretical progress in reconfigurable intelligent surfaces (RISs), practical models and network-level studies remain limited. This paper bridges the gap, exploring RIS-assisted links, proposing a control plane approach, and...
Diamond-on-chip magnetic field camera for mobile imaging
In this work, we introduce concepts for spatially resolved magnetic field sensing and two-dimensional gradiometry with an integrated magnetic field camera. The camera utilizes infrared absorption optically detected magnetic resonance (IRA ODMR)...
3D-Printed Dual-Polarized Magneto-Electric Dipole Antenna with Wideband High Isolation for Full-Duplex Applications
This paper presents a dual-polarized magneto-electric dipole antenna with orthogonal Gamma and inverted-Gamma probes, fabricated via 3D metal printing. It offers a 3-4 GHz impedance bandwidth, with excellent cross-polarization isolation (>50...
Link Tomography: A Tool for Monitoring Optical Network and Designing Digital Twins
Researchers from Deutsche Telekom AG and Fraunhofer HHI explores the Link Tomography, a receiver-based DSP approach for monitoring optical networks and detecting anomalies. Delving into concepts and building methodologies, it addresses challenges...
Data Governance Framework for Telemetry Sharing
We propose a novel solution using the Eclipse Dataspace Components (EDC) Connector to enable regulated and policy-driven telemetry data sharing in telco ecosystems. We present its architecture, several compatible use-cases, and results validating...
7.75 Gbit/s LiFi Transmitter Using High-Power VCSEL Arrays
We report on a wide-beam LiFi transmitter using multiple VCSEL arrays with digital drivers. We transmit a 3.75 GBd PAM-3 signal at a gross data rate of 5.625 Gbit/s. Single-driver OOK operation yields 7.75 GBd.