3 papers
cs.CR2021
LaserShark: Establishing Fast, Bidirectional Communication into Air-Gapped Systems
Niclas Kühnapfel, Stefan Preußler, Maximilian Noppel +3
Physical isolation, so called air-gapping, is an effective method for protecting security-critical computers and networks. While it might be possible to introduce malicious code th…
physics.app-ph2017
Transparent Microwave Photonic Filter Based on Brillouin Losses in Optical Fiber
Cheng Feng, Stefan Preussler, Thomas Schneider
In this paper, we propose a low-noise, bandwidth tunable microwave photonics filter (MPF) based on stimulated Brillouin scattering (SBS) losses. By suppressing the out-of-band sign…
physics.optics2016
Frequency-time coherence for all-optical sampling without optical pulse source
Stefan Preussler, Gilda Raoof Mehrpoor, Thomas Schneider
Sampling is the first step to convert an analogue optical signal into a digital electrical signal. The latter can be further processed and analysed by well-known electrical signal…