title: Investigation of Raman fiber laser temperature probe based on fiber Bragg gratings for long-distance remote sensing applications.
abstract: We demonstrate a practical and simple, all fiber Bragg grating (FBG) based Raman laser sensing probe for long-distance, remote temperature sensing application. Using multiple laser cavities based on FBG's and a tunable chirped FBG, we obtain the simultaneous multi-channel remote temperature sensing operation at a 50 km distance. The temperature sensitivity is measured to be 7.15 pm/ degrees C.
authors.forename: Ju
authors.initials: J
authors.lastname: Lee
authors.forename: Junhee
authors.initials: J
authors.lastname: Kim
authors.forename: Young-Geun
authors.initials: YG
authors.lastname: Han
authors.forename: Sang-Hyuck
authors.initials: SH
authors.lastname: Kim
authors.forename: Sang
authors.initials: S
authors.lastname: Lee