title: Bidirectional measurement for Brillouin optical correlation domain analysis.
abstract: We propose and experimentally demonstrate a bidirectional measurement for Brillouin optical correlation domain analysis as a novel and simple way of the performance enhancement. Brillouin gain and loss spectra of two adjacent correlation peaks are simultaneously and independently analyzed by applying midpoint attenuation in a fiber under test, which doubles both the speed and the range of the distributed measurement.
authors.affiliation: Center for Opto-Electronic Convergence Systems, Korea Institute of Science and Technology (KIST), Seoul, South Korea.
authors.forename: Ji Ho
authors.initials: JH
authors.lastname: Jeong
authors.forename: Kwanil
authors.initials: K
authors.lastname: Lee
authors.forename: Kwang Yong
authors.initials: KY
authors.lastname: Song
authors.forename: Je-Myung
authors.initials: JM
authors.lastname: Jeong
authors.forename: Sang Bae
authors.initials: SB
authors.lastname: Lee