title: Optical fiber ring resonator characterization by optical time-domain reflectometry.
abstract: A novel method for characterization of optical fiber resonators by an optical time-domain reflectometry (OTDR) technique is reported. This easy-to-use technique yields accurate results for cavity lengths ranging from a few meters to several kilometers. A simple relationship is established between the round-trip cavity loss and the position where the OTDR signal is maximum. The value obtained for the round-trip cavity loss turns out to be quite insensitive to uncertainties in the determination of the OTDR maximum position.
authors.forename: A
authors.initials: A
authors.lastname: Küng
authors.forename: J
authors.initials: J
authors.lastname: Budin
authors.forename: L
authors.initials: L
authors.lastname: Thévenaz
authors.forename: P A
authors.initials: PA
authors.lastname: Robert