title: New measurement system for fault location in optical waveguide devices based on an interferometric technique.
abstract: A new measurement system for fault location in optical waveguide devices is presented. The system consists of a fiber-optic Mach-Zehnder and a bulk-type Michelson interferometers. The spatial resolution of the scatter distribution is <380 microm, which is limited by the averaging time. The minimum detectable backscattered power is -116 dB relative to the light power propagating in the waveguides. Preliminary experimental results using single-mode fibers <10 cm long are demonstrated.
authors.forename: K
authors.initials: K
authors.lastname: Takada
authors.forename: I
authors.initials: I
authors.lastname: Yokohama
authors.forename: K
authors.initials: K
authors.lastname: Chida
authors.forename: J
authors.initials: J
authors.lastname: Noda