Optical vortices—light beams carrying orbital angular momentum (OAM)—are characterized by helical wavefronts and phase ...

Researchers at the Karlsruhe Institute of Technology (KIT) have reported important progress in quantum physics and materials ...

X-lumin has successfully demonstrated a roundtrip optical transmission from its 15cm Optical Ground Terminal (OGT) to a retroreflector-equipped LEO satellite, and back, with the ability to track ...

Index modulation (IM) has emerged as a promising technique for improving spectral efficiency and hardware efficiency in next-generation communication ...