2 papers
physics.optics2025
Communicating at a record 14.5 bits per received photon through a photon-starved channel
Sai Kanth Dacha, Rene-Jean Essiambre, Alexei Ashikhimin +4
Exploration of the Universe requires communication with Earth, either on a direct path or through a cascade of proximate celestial bodies. Microwaves have traditionally been used f…
quant-ph2023
Record Photon Information Efficiency with Optical Clock Transmission and Recovery of 12.5 bits/photon over an Optical Channel with 77 dB Loss
René-Jean Essiambre, Cheng Guo, Sai Kanth Dacha +18
We experimentally demonstrate optical detection at 12.5~bits per incident photon, 9.4~dB higher than the theoretical limit of conventional coherent detection. A single laser transm…