loading page

PDL Localization and Estimation through Linear Least Squares-based Longitudinal Power Monitoring
  • Lorenzo Andrenacci ,
  • Gabriella Bosco ,
  • Dario Pilori
Lorenzo Andrenacci
Politecnico di Torino, Politecnico di Torino

Corresponding Author:[email protected]

Author Profile
Gabriella Bosco
Author Profile
Dario Pilori
Author Profile


A novel algorithm capable of localizing Polarization-Dependent Loss (PDL) and directly estimating its value in a multi-span optical transmission link using only Rx-side Digital Signal Processing (DSP) is proposed. The algorithm employs a Linear Least Squares-based power profile estimation method and it succeeds in localizing multiple PDL sources along the link. Its performance is evaluated across diverse power levels, including SNR-maximizing ones, resulting in consistently comparable results.
15 Dec 2023Published in IEEE Photonics Technology Letters volume 35 issue 24 on pages 1431-1434. 10.1109/LPT.2023.3331110