Title :
31-km distributed temperature measurement with very high resolution using coherent-OTDR enhanced with bidirectional EDFA
Author :
Shimano, Ryosuke ; Iitsuka, Yuta ; Kubota, Kenya ; Koyamada, Yahei
Author_Institution :
Grad. Sch. of Sci. & Eng., Ibaraki Univ., Hitachi, Japan
Abstract :
We achieved a distributed temperature measurement with a resolution of 0.02°C and a spatial resolution of 2 m over a 31-km-long fiber by using a coherent optical time-domain reflectometer (C-OTDR) enhanced with a bidirectional erbium-doped fiber amplifier (Bi-EDFA).
Keywords :
erbium; fibre optic sensors; light coherence; optical fibre amplifiers; optical time-domain reflectometry; reflectometers; temperature measurement; JkJk:Er; bidirectional EDFA enhanced coherent-OTDR; bidirectional erbium-doped fiber amplifier; coherent optical time-domain reflectometer; distributed temperature measurement; size 31 km; spatial resolution; Frequency measurement; Optical fiber amplifiers; Optical fiber couplers; Sensors; Spatial resolution; Temperature measurement;
Conference_Titel :
OptoElectronics and Communications Conference (OECC), 2010 15th
Conference_Location :
Sapporo
Print_ISBN :
978-1-4244-6785-3
