• closedAccess   Quadratic phase coding for SNR improvement in time-expanded phase-sensitive OTDR 

      Soriano-Amat, Miguel; Martins, Hugo; Durán, Vicente; Martin-Lopez, Sonia; Gonzalez-Herraez, Miguel; Fernández Ruiz, María del Rosario Optical Society of America (2021-09-01)
      Time-expanded phase-sensitive optical time-domain reflectometry (TE − 8OTDR) is a dual-comb-based distributed optical fiber sensing technique capable of providing centimeter scale resolution while maintaining a remarkably low ...