Long-Range (>100km) Distributed Vibration Sensor based on Φ-OTDR Technique with Spread Amplification and Detection of Probe Pulses.
David SanahujaJavier PreciadoJesús SubíasCarlos HerasLucía HidalgoIñigo SalinasPascual SevillanoJuan José MartínezAsier VillafrancaPublished in: PHOTOPTICS (2019)