3 papers
physics.optics2026
High-Resolution Coherent DFS Over 20km Ultra-Low-Loss Anti-Resonant Hollow-Core Fiber with Live Traffic
Rajiv Boddeda, Arnaud Dupas, Haïk Mardoyan +10
We demonstrate sub-meter resolution Coherent DFS and detect acoustic oscillations using a stabilized laser on 20 km of anti-resonant HCF with <0.10 dB/km loss without impacting liv…
eess.SP2026
A Block Least Mean Square Method for Fiber Longitudinal Power Profile Monitoring
Paolo Serena, Chiara Lasagni, Alberto Bononi +2
We propose a block least mean square (LMS) algorithm to monitor the longitudinal power profile of a fiber-optic link through receiver-based digital data from a coherent detector. C…
physics.optics2025
Power-Aware Digital Twin of Coherent Optical Receiver
Ambashri Purkayastha, Camille Delezoide, Fabien Boitier +4
We propose a digital twin of coherent receivers based on an extended physical model for predicting quality of transmission under receiver power variations. We experimentally valida…